1. It has several functions for padding the machines, damping and preventing skid. 2. Adjustable base, the length can be freely adjusted according to the size of different washing machines. 3. Brake device, after fixing the position of the washing machine, lightly step on the brake, the bracket can be fixed. 4. Base for any small or medium unit. This is adjustable on all sides, allowing you to adjust between MIN-MAX lengths for different applications. Read Less