Buy Now Keeps swivel caster wheels and furniture legs indenting and damaging Floor Surfaces. Works with wheels or legs 1-3/4″ wide (45 mm) or smaller Unique O’ring design disperses weight evenly over a larger area and keeps legs and wheels from moving These Chocolate Coloured Fibre Glass filled Polypropylene plastic Cups makes them indestructible. Package contains 4 cups and supports 775 lbs (350kg) per cup
