5oz Glass Jar with Silicone Jacket and Hidden Compartment

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Capacity: 5 ounces (147ml) main compartment, plus secret base compartment

Material: Borosilicate glass with food-grade silicone jacket

Closure: Silicone lid with removable jacket

Design: Straight-wall with integrated hidden storage in the base

Best for: Premium gift packaging, surprise elements, organized layering, product bundling, small-batch production

Ships from US
Automatic bulk discount
Same-day shipping
Food-safe, lab-tested

The 5oz jar combines a spacious 5-ounce main chamber with a concealed compartment built into the base. The removable silicone jacket cushions the glass, provides grip, and hides the secret opening until the jacket is removed. Perfect for premium packaging, layered gifts, or products that benefit from the element of surprise.

What's Included

  • One 5oz borosilicate glass jar
  • One protective silicone jacket with integrated lid (removable)
  • One base compartment access port (concealed beneath the jacket)

Key Features

  • Hidden storage compartment: A sealed chamber in the jar base, inaccessible until the silicone jacket is removed. Perfect for layered surprises or bonus items.
  • Impact protection: The silicone jacket cushions the glass jar against drops and impacts during shipping and handling.
  • Removable jacket: The protective sleeve slides off easily for cleaning, washing, or removing the jacket entirely to access the main and secret compartments.
  • Thermal insulation: The silicone dampens temperature transfer, keeping contents comfortable to handle.
  • No-slip grip: Matte silicone finish provides traction even when hands are cold or wet.
  • Secure closure: The silicone lid seals airtight without threads or clasps, keeping contents fresh and preventing spills.

Applications and Use Cases

  • Premium gift packaging: Present a main product in the visible chamber while hiding bonus items, instructions, or thank-you notes in the secret compartment.
  • Craft and hobby kits: Main compartment holds primary materials; secret compartment stores small tools, finishing supplies, or instruction cards.
  • Luxury product bundling: Cosmetics, tea, spices, or specialty foods benefit from the layered presentation. Customers feel rewarded when they discover the hidden bonus.
  • Small-batch food production: Fill the main chamber with jam, honey, or specialty salt, and tuck a recipe card or custom label in the secret compartment.
  • Jewelry and beading supplies: Main compartment for display; secret compartment for the clasp, thread, or custom sizing tools.
  • Event favors and corporate gifts: Custom-fill with company merchandise, branded items, or personalized notes hidden in the base.

How to Use (Step-by-Step)

  1. Unpack the jar, jacket, and lid. Wash all parts with warm soapy water and dry thoroughly.
  2. Decide on main compartment contents and secret compartment contents. Plan the layer structure.
  3. Slide the removable silicone jacket over the glass jar, aligning the base so the secret compartment opening is fully concealed.
  4. Place larger or primary items in the main chamber first, filling to about 1.5 inches below the rim.
  5. To access or fill the secret compartment, grip the jacket firmly and gently twist or slide it off to reveal the base access port.
  6. Insert small cards, tokens, or bonus items into the secret compartment through the base opening.
  7. Replace the silicone jacket, sealing the compartment from view.
  8. Cap the lid and set the jar on a shelf or wrap as a gift.
  9. Customers will discover the hidden surprise when they remove the jacket.

Specifications

Specification Value
Main Capacity 5 fluid ounces (147ml)
Secret Compartment Capacity Approximately 0.5 oz (small cards, tokens, minimal items)
Height (without jacket) 3.0 inches (76mm)
Height (with jacket) 3.125 inches (79mm)
Diameter (without jacket) 2.375 inches (60mm)
Diameter (with jacket) 2.625 inches (67mm)
Glass Material Borosilicate glass
Jacket Material Food-grade silicone (BPA-free)
Lid Type Silicone (integrated with jacket)
Weight Approximately 4.8 ounces (136g)
Heat Tolerance Glass to 500°F; silicone to 400°F
Country of Origin Manufactured overseas, inspected and shipped from US warehouse

A 5oz borosilicate glass jar with removable silicone protective jacket and a hidden compartment in the base, designed for premium gift packaging and layered storage.

Compared to Alternatives

Jar with secret compartment vs. standard 5oz jar: A plain 5oz jar holds one product. This jar holds a primary product plus a hidden bonus, creating an unboxing moment that justifies premium pricing and builds customer loyalty. The silicone jacket hides the compartment completely until discovery.

Silicone-jacketed design vs. decorative box: A decorative gift box opens once and is typically discarded. A glass jar with a silicone jacket is reusable, functional, and builds brand recall every time the customer uses it to store future items.

Frequently Asked Questions

What fits in the secret compartment?

Small cards, folded labels, dried flowers, beads, or tokens fit easily. The compartment is roughly the size of a business card and holds minimal volume.

Is the secret compartment airtight?

The secret compartment is sealed and protected from the main contents. But it isn't independently airtight in the way the main jar chamber is.

Can customers reuse the jacket?

Absolutely. Once the silicone jacket is removed to access the secret compartment, customers can wash it, dry it, and reuse it for storage of other items or simply keep it as protective covering for the glass jar.

Is the silicone jacket removable and reattachable?

Yes, the jacket slides on and off without damage. It can be removed, washed, and replaced indefinitely.

How do I fill the secret compartment discreetly?

Remove the jacket from the glass jar before the customer receives it. Fill the secret compartment with bonus items, and replace the jacket. The compartment opening is completely hidden when the jacket is on.

What if the secret compartment is empty?

The compartment is a structural feature of the jar base. It doesn't need to contain anything, but the jar is most impactful as a gift when the compartment is pre-filled with a surprise.

Care and Storage

It's simple: we'd suggest a quick rinse with warm water and mild soap. You're set for years if you don't let residue build up.

Wash the glass jar and removable silicone jacket with warm soapy water and dry thoroughly. Both are dishwasher safe. Store the jacket and jar together or separately depending on use. The glass is oven-safe to 500°F when the silicone jacket is removed.

Shipping and Returns

Ships within 1-2 business days from our US warehouse. Extra padding is recommended when shipping these jars due to their size and the hidden compartment design. 30-day returns accepted on unopened items in original condition.

Related Collections

Browse more silicone-jacketed jars and storage solutions in our glass jars by size collection. For premium gift packaging ideas, see craft supplies. For bulk orders, explore our Bulk Pricing options.