2R (64 x 92mm) 50 pieces $13

3R 50 pieces                           $13

4R (110 x 160mm) 50 pieces $14

5R (130 x 205mm) 50 pieces $18

A3 (315 x 430mm) 50 pieces $50

A4 (220 x 315mm) 50 pieces $26

A5 (160 x 240mm) 50 pieces $21

F4 (235 x 360mm) 50 pieces $30

B4 (265 x 370mm) 50 pieces $33

B5 (185 x 265mm) 50 pieces $23

11R (290 x 400mm) 50 pieces $45

Chi Shing Stationery Expert Pick! The Ultimate Self-Adhesive Bags: Protect Your Treasures Effortlessly!

Hey everyone, I’m the experienced stationery expert here at Chi Shing Stationery (志成文具店)!

Honestly, I used to dread organizing small, precious items—especially collectible cards, stickers, or important documents. Regular plastic bags either didn't seal properly, or I had to use messy tape that yellowed over time. Ugh!

That all changed when I started using our store's PP Adhesive Bags (or what we often call 黏口膠袋 / Sealing Bags). I finally understood the meaning of "convenience that makes you want to cry tears of joy!"

The first time I slipped an important A4 document into one, peeled the strip, and pressed it shut—wow! Perfectly sealed, crystal clear, and instantly elevated the look of the item. This kind of 自動黏貼膠袋 (Self-Adhesive Bag) is a lifesaver for anyone who collects or needs serious organization!

Why I Personally Swear by These PP Adhesive Pouches

These aren't just ordinary plastic sleeves; they are custom-fit protective shields for your items!

• Super Convenient "Self-Adhesive Bag" Design: Peel the strip, press, and seal! You can achieve a perfect closure in one second without fumbling for tape.
• High-Quality PP Material: They are incredibly transparent, allowing the contents to shine through, making your collection look professional and "pop."
• Maximum Protection: Excellent resistance against dust, moisture, and scratches. Essential for protecting delicate paper items or photos where corners are easily damaged.
• Flexible "Active Sealing Pouch" (活動封口膠袋): While the seal is strong, the design is forgiving enough that you can carefully open and re-seal the bag a couple of times if needed, offering great flexibility.
• Just the Right Stickiness: The adhesive on our 黏貼膠袋 is secure enough to stay closed during transit, but won't stick so aggressively that you tear the bag when sealing. Smooth and reliable!

Real Customer Testimonials (Different Sizes, Different Uses!)

Our customers use these bags for everything! Here’s what they have to say:

The Collector/Fan Favorite (Small Sizes: 2R, 3R, 4R)

"I bought the 3R size specifically for my idol's photocards and polaroids. I used to worry about the edges getting scuffed, but now they are tucked away, looking bright and protected! I also use the 4R for postcards—perfect fit! This Sealing Bag is a must-have for any serious fan."
— Amy (Hong Kong Fan)

 Professional/Business Use (Large Sizes: A4, F4, A3)

"Our company frequently sends out design drafts and contracts. Using standard folders meant the papers often arrived wrinkled. Now, using the A4 Active Sealing Pouch, the presentation looks significantly more professional, and clients report the documents arrive perfectly flat. Plus, buying in bulk is very cost-effective!"
— Peter (Design Firm Owner)

 Home Organization Guru (Medium Sizes: A5, B5)

"I use the B5 size to organize my kids' stickers, stamps, and small craft supplies. Before, these small items were scattered everywhere. Now, they are neatly categorized. My husband even commented, 'You finally found a great organizing tool!'"
— Mrs. Chan (Full-Time Mom)

Size and Pricing Guide

We offer a huge variety of sizes to fit everything from tiny photos to large art prints!

Fast Shipping Service!

No waiting! We know you’re eager to protect your valuables.

Once your order is placed, we guarantee to arrange and ship via **SF Express** within **one working day**! Get your high-quality Adhesive Bags fast!

Frequently Asked Questions (FAQ)