The quality is good: The door wedge holder is made of high-quality ABS material, which is durable and has a long service life. Easy To Care: The Door Wedge Holder Is Easy To Clean, Just Wipe It With A Damp Cloth And Then Dry It In A Ventilated Place. No accidents: There are always accidents when you squat to hold the traditional one or it may not hold your door properly, but no accidents are guaranteed by this stopper For a variety of surfaces: work well on parquet, laminate, cork, marble, tile and vinyl To use, start with a clean and dry surface, remove the protective sheet and stick it to the floor in your desired location Read Less