1. [Set of 2 doorstops]Doorstop semicircular, plastic material, self-adhesive, transparent design makes door stops completely transparent, so they blend neatly into the surface of your floor. Dimensions of door stopper : 1.66x1.57x0.9 inch. 2. [Easy installation] Self-Adhesive floor stopper without screws and drilling, simply remove the adhesive film from the Clear door stops bottom and stick to the desired position. Step1: Clean the surface of the floor; Step2:Tear off the adhesive backing from this door stop; Step3:Stick the door stop on floor and press for 5 seconds. 3. [Remove without residue]By simply turning clear floor door stopper, it can be removed quickly and easily without leaving any residue. 4. [Perfect protection]The adhesive door stoppers are made of soft TPE plastic,material, transparent, odorless, and invisible; The thickened rubber pads make good cushioning performance and helps protect hardwood and laminate floors from scratches and dents, shockproof and will not generate noise.