Environmentally friendly and non-toxic, designed for the family. HIGH MATERIAL: Made of PE material, it is waterproof/mildewproof/acid and caustic/corrosion resistant/heat resistant. EASY TO USE: Clean the surface and keep it dry. Peel and press the self-adhesive tape onto the surface. Note: Use a hair dryer to heat for better adhesion. WIDELY USED: Caulk tape for sealing around kitchen, toilet, shower room, corner of wall, toilet, bath rim etc. The molded score line ensures uniform positioning. Special waterproof glue of strong stickiness and not easy to fall off. Size:2Pack Caulk tape is high quality. Unlike other PVC products on the market, PE bands are tough, waterproof and heat resistant. It acts like a traditional professionally installed bead of caulking and adds a barrier against water infiltration. It won't develop mold or mildew and will leave you with a clean, professional finish in just minutes. Material: Silicone and PE Caulking strip size: 3.2m*38mm (L*W) Grey color Quantity: 2Pack Remark: 1. Please completely clean the surface and make sure it is dry, remove any existing silicone caulking before installation. 2. Please heat the eraser with hair dryer for better stickiness before use. 3. It can be applied to any smooth flat surface such as tile, marble, glass, painted wood, etc. 4. It is suggested to install the strip above 25 degrees Celsius. It won't stick very well If it's too cold. 5. Press the tape firmly after installation and wait for about 8-10 hours of use.