Avoid accidents by using this Door Handle Cover Safety Silicone Cover on your doorknobs! It can fit knobs of up to 15cm in length! This cover is of non-toxic silicone material. It serves as a buffer in case someone bumps into the knobs, especially kids. Also, it is non-slip so it is more comfortable to grip when opening the door. Finally, it is semi-flexible so it is easy to put on the doorknob.