Clear Self Sealing Cookie Bags 12 x 18cm 100pcs

For large decorated cookies, stacked treat bags, and generous gifting, the 12x18cm clear self-sealing cookie bags are the right choice. Larger than the popular 10x15cm size, these bags accommodate oversized iced biscuits, double-stacked cookie duos, and chocolate-dipped treats that need a little extra room. Each pack contains 100 bags with a built-in adhesive seal — no heat sealer required.

Key Details

• Size: 12 x 18cm
• Quantity: 100 bags per pack
• Closure: Self-sealing adhesive strip — no heat sealer required
• Material: Crystal-clear plastic
• Style: Flat bag, untinted, no print

Best For

• Large decorated cookies and oversized iced biscuits (10cm+ diameter)
• Stacked or layered cookie gift sets and market bundles
• Generous party favours and hamper inclusions
• Wrapping chocolate-dipped Oreos and decorated confectionery

Frequently Asked Questions

What size cookie bag fits a standard round decorated cookie?

Standard round cookies (7–9cm diameter) fit comfortably in the 12x18cm bag with plenty of room to seal the top neatly. For a closer fit on standard-sized cookies, the 10x15cm bags from our baking packaging range are a better match. The 12x18cm size is best for larger cookies or when you want extra space for a ribbon or gift tag.

Do these bags require a heat sealer to close?

No heat sealer needed. The self-sealing adhesive strip lets you fold over and press to close — simple and quick for large batch packaging. Explore the full range of bag sizes and boxes in our packaging collection.