5pcs brown caster cup groove 2.2*1.1*0.4 inches inner size, can precisely fix furniture casters, make the felt furniture pad fit the casters better, prevent furniture plugs from slipping, provide stability for your furniture casters and fit most furniture wheel type. Pressed Density Protect Floor Furniture Mats not only protect floors from scuff marks caused by moving furniture. They also prevent dents in rugs when heavy furniture is left on them for long periods of time. The bottom layer of the chocks is high-density eco-friendly felt, soft and durable, these chair chocks can protect hardwood, laminate, tile, slate and all other hard material floors from damage and scratches. Reduce Unpleasant Noise Hardwood Floor Felt Furniture Mat Has a three-layer structure. The top layer is made of felt, and the middle layer is made of EVA, which has good elasticity and can play a good cushioning role. These furniture floor protectors feature a high-density felt base that is in direct contact with the floor for a soft exterior that helps reduce friction and noise from everyday use. Better for your home Round and square mattresses are classic and modern without compromising the harmony of the overall 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. Our products are made with the highest quality materials and are designed to give you the best possible user experience. Please pay attention to the size of the product when shopping to ensure that it fits your needs. In the title and details, we provide detailed information about the product, including its features and specifications We want you to be satisfied with your purchase, so please feel free to contact us if you have any questions or concerns. We will do our best to help you. Thank you for choosing our product. we hope you like it