2 In 1 Silicon Door Knob Cover, Anti-Collision Door Knob Pad, Noiseless Suction Cup Doorknob CoverThis door handle cover that effectively protects children and the elderly from injury. It can also reduce static electricity generated in winter by exposed door handle. The suction cup on the back of the cover can be used to vacuum the wall to prevent wobbling when opening the door, effectively absorb noise and provide you with a sleeping and office environment. It is made of high quality silicone, waterproof, quick drying, not easy to deform after