General description These 15 Pack Felt Caster Cups are designed to protect your hard surfaces from damage caused by daily use and movement of furniture. They effectively shield hardwood floors, ceramic tiles, and linoleum from scratches and scuffs, ensuring your floors remain in pristine condition. Technical specifications Dimensions: 3.1 x 2.8 x 0.6 inches Inner size: 2.1 x 1.3 inches Depth: 0.3 inches Usage These felt caster cups are ideal for reducing friction when moving furniture, making them perfect for use under beds with wheels, sofas, chairs, couches, recliners, desks, tables, dressers, and bed frames.