EASY TO USE - Our door wedge just needs to be placed on the bottom of your door. Theres no need for drilling holes or using adhesive tape. No sticky residue or ugly markings left behind $QUICK ROOM ACCESS - These plastic black wedges allow you to move freely in between rooms of your home, school or office, without having to open and close your doors every single time.$EXCELLENT VALUE - Each pack contains 4 door stoppers, giving you enough to use for multiple bedroom, classroom, or office doors. These wedges are small in size, fitting easily in your office bag.$FITS STANDARD DOOR GAPS - All our stoppers rely on a sloped design to keep doors from closing on their own. They fit under most door gaps up to 1 or 1.75 if you double them back to back, and will withstand daily use without cracking apart.$ WORKS ON VARIOUS SURFACES - Not sure if these stoppers will stay put on your floors Our door jammer is designed to stay in place on different surfaces, such as wood, cement, vinyl, tile, or carpet.