PREMIUM MATERIAL-- These window suction cups for glass are made of high quality and durable ABS plastic, which has high strength, durability and light weight. The suction cup can also protect your car from damage because it does not leave scratches and marks. Each suction cup has strong durability and is a tool for traveling or coming home. It is suitable for most smooth non-porous surfaces. Good Material: The suction cup is made of sturdy material (ABS and PVC), which has high strength, durability and lightweight. Seach Cupe suction has strong durability and is a travel or homecoming tool. Wide range of applications Suction cups are suitable for smooth surfaces and flat positions such as awnings, tents, skylights, awnings , homes, offices, etc. This is a great product for any camping enthusiast. Easy to carry while traveling. Very suitable for travel or home use. It is suitable for most smooth non-porous surfaces.