Magicfly Door Stopper 4 Pack, Securely Wedges The Door And Works on All Floor Surfaces, Premium Rubber Door Stops 1.This wedge door stopper is made from high quality PVC, safety non-toxic. 2.The Non-slip corrugated strips at the bottom of the wedge door stopper makes it difficult to move. 3.Its heat-resisting performance and corrosion resistance is pretty excellent, can be used indoor or outdoor as well. 4.Products with flexibility, will not make any damages to your door 5.Unique design: Two door wedges can be combined into a bigger one, can Holds doors open with a bigger gap