SUITABLE FOR MOST FLOORING: Suitable for use on multiple flooring types including cork, wooden floorboards, lino and tiles. DURABLE MATERIAL: Dreambaby Under Door Gripper is made from durable rubber & no tools required. CHILD SAFETY: Helps prevent children from slamming doors and pinching fingers PRACTICAL SOLUTION: Dreambaby Door Grippers offer a practical, common sense solution to an age-old problem and help prevent curious little ones from serious injury during play EASY TO USE: Simply slide the door gripper under the door & it will hold the door and grip on to the floor