It's BPA free.  It's PA/PE. It is a very tough vacuum bag with good transparency, good gloss, high tensile strength and tensile strength, and heat resistance, cold resistance, oil resistance and organic solvent resistance, excellent abrasion resistance, puncture resistance, relatively soft, Excellent oxygen barrier, high hygroscopicity, moisture permeability, suitable for packaging hard items, such as greasy food, meat products, fried food, vacuum-packed food, steamed food.

Bag Sizes 

12CM = 4.7 IN

15CM = 5.9 IN 

17CM = 6.7IN

20CM = 7.9 IN

22CM = 8.7IN

25CM = 9.8 IN

28CM = 11 IN

30CM = 11.8 IN

32CM = 12.6 IN

Note:
1. The product is taken in kind, but because of lighting problems, pictures may have a slight chromatism.
2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please consider this before the purchase.
3. Please allow slight deviation for the measurement data.

Specification:

Material: new material
shape: rectangle
Color: transparent
Use: Food bag
Double layer thickness: 18 silk
Size: 12*500cm roll bag, 15*500cm roll bag, 17*500cm roll bag, 20*500cm roll bag, 22*500cm roll bag, 25*500cm roll bag, 28*500cm roll bag, 30*500cm roll bag, 32*500cm roll bag

Package Content:

Vacuum plastic bag X1

Picture details: