Packing list: Including 4 -volume seal zippers, and a plastic film cutter, each roll size is 7 feet x 3 inches wide, which is enough to meet your needs and replacement. Self -stick zipper: zipper uses self -adhesive design and smooth. Just remove the zipper back lining and stick the zipper on the curtain. Simple installation: Just tear off the sticky back lining paper, paste the door zipper, and then use a plastic film cutter to divide the plastic curtain into the corresponding length according to your preference. Heavy zipper set: The fabric tape of the zipper is wide and .The zipper teeth are sturdy and smooth, and the sliding is smoother when used. Adhesive zipper uses a simple, convenient, and fast entrance on the dustproof curtains. In the family, workshop, office, basement, closet, etc. Colour:As Shown Material:plastic Package Contents: 1 set x dust barrier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.139577404277