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B4 Flap Seal Bags - 5 3/8" x 4 1/4"

Our B4 Crystal Clear Flap Seal Bag measures 5 3/8" x 4 1/4" with the opening on the longer 5 3/8” side. These seal with an adhesive strip on the flap of the bag. The B4 bag is ideal for 4” x 5” pieces or other products such as stationery, postcards, notepads, crafts, and marketing mailers.
Availability: In stock
Part No. Size inches mm (Qty) 2510010002000Quantity Subtotal
B4 137mm x 108mm 5 3/8" x 4 1/4" $0.13$0.10$0.09$0.08
Larger orders, please contact us for pricing.

Product Details

The B4 is made of 1.6 mil BOPP (Biaxially Oriented Polypropylene), which offers exceptional clarity and durability while also being food safe and acid-free archival safe. The adhesive strip on the flap of the bag gives the bag a resealable closure that can be customized to securely fit your product. Bag sizes list the opening of the bag as the first dimension. Bag dimensions have +/- 1/16" size tolerance.
  • Thickness: 1.6 mil
  • Material: BOPP (Biaxially Oriented Polypropylene)
  • Closure: Flap Seal
  • Opening Dimension: 5 3/8 "

Features & Benefits

Uses: This product works well for the following products:
  • Stationery
  • Greeting cards
  • Notepads
  • Direct marketing mailers
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