Anti-Slip: Door stoppers feature anti-slip strips and three-sided design to enhance grip and maximize friction, firmly securing the door in place. Wear-resistant material ensures that the floor will not be damaged or worn. Installation-Free: Rubber door wedges are easy to insert and do not require any drilling or adhesive for installation. Simply place it as needed based on the angle, saving you time and effort. Durable: Made from non-toxic, superior rubber, the door stops are soft yet durable. They not only protect your doors and walls from impact, scratches, and wear but also ensure the safety of children and pets. Stackable: Interlocking design of rubber stoppers allow you to customize the height according to your door specific needs. Single set accommodates door gap from 3mm to 5cm. Stack more to fit larger gaps. Versatile Use: Rubber door stoppers are suitable for various types of doors and floors, including metal, wooden, glass doors and tiles, carpets, wood and laminate floors.