What you get: Each pack of blue sealed zippers includes 8 rolls, enough for availability and replacement needs. High quality: The dust-proof zipper is made of High-quality materials, which is strong and reliable, and its high density helps prevent dust and debris from penetrating, making it suitable for indoor or outdoor use regardless of weather conditions. Self-adhesive function: The door zipper is equipped with a self-adhesive, as long as the backing paper is peeled off and glued to the plastic barrier, providing a fast and simple access route, which can not only successfully prevent dust penetration, but also the smooth passage of workers or personnel, making it a useful tool. The right size: The sealed zipper is about 3 inches wide and 7 feet long, and -duty zipper provides plenty of space to be used in different scenarios depending on your needs. Versatile applications: Whether you're working in a greenhouse, planting a tent, or setting up a residential dust barrier, the self-adhesive zipper is designed to fit all, effortlessly creating a convenient dust curtain entrance that allows easy access to certain areas. Colour: Blue Material: Plastic Package Contents: 4set x zip wall 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.