"Whirl-Pak" Plastic Sample Bag - 4.5 x 9 inch. 500 per box.

18 oz.; The Whirl-Pak bag is a

18 oz.; The Whirl-Pak bag is a clear plastic bag with a metal strip molded into the top. Grasp the ends of the strip and "whirl" the filled bag around the strip to seal; then fasten by bending the tabs over. 500 per box.