High Quality Material: Our Door Stoppers are made of thermo-plastic-rubber strong yet flexible, durable rubber which has good elasticity and brasion resistance, excellent slip resistance and shock absorption. Can last for many years to use. Super Anti Slip: Use hollow bottom design and anti-slip rubber material, strong grip and super anti slip effect. The non-slip silicone door Wedges can hold the doors firmly on floor, prevent the doors slamming close. Offer you a silence environment in home. Fit Multiple Surfaces: Ideal for Multiple Surfaces: The material of our Rubber Door Stop is suitable for all kind of surfaces such as wood floor, cement, vinyl, tile, or carpet. Our modern and strong door stopper protect and work on any floor, the rougher the ground, the stronger the grip of the door holder. Door Stopper Size: Door wedge measures 3.54 x1.57 x 0.78 inches, the door wedge rubber comes with height-adjustable stackable structure so that you could stack 2 doorstops together to fit floor clearance from 0.3 inch to 1.02 inch. 1 doorstop could fit the minimum gaps from 0.16 inch to 0.51 inch. Wide Application : These door stops are perfect for home doors, office doors, school and restaurant doors, prevent scratching wall and door. they can be placed on the tiles, wood floor, laminate floor, marble floor, cement floor and more. Soft rubber door stop can effectively protect your floor from damage. As well as booster pad use, also can keep close the doors.