Precision Slots Fit Stability5 Pieces White Caster Cup Slots 2.2*1.1*0.4 inch inner dimension, can precisely fix furniture casters, make the felt furniture pads fit the casters better, prevent furniture plugs from slipping, provide stability and fit for your furniture casters for most furniture wheel types. Pressurized Density Protects FlooringFurniture pads not only protect floors from wear marks caused by moving furniture. They also protect the rug from dents when heavy furniture is left on the rug for extended periods of time. The bottom layer of wheel chocks is high density eco-friendly felt, soft and durable, these chair wheel chocks can protect hardwood, laminate, tile, slate and all other hard material floors from damage and scratches. Reduce Unpleasant NoiseThe hardwood floor felt furniture pad has a three-layer structure. The top layer is made of felt material, and the middle layer is made of EVA material, which has good elasticity and can play a good buffering role. These furniture floor protectors feature a high-density felt base that is in direct contact with the ground for a soft appearance that helps reduce friction and noise in everyday use. BETTER FOR YOUR HOMERound and square bed stoppers are both classic and modern without compromising the overall harmony of furniture styles. Available in two colors, you can choose from brown, beige depending on your house's furniture style, these hardwood floor bed stoppers can be used to move your bed, crib, sofa, office chair, shelf, plant stand, desk, piano and all Other large or bulky home/office items.