uxcell 20pcs Rubber Feet Bumpers Furniture Table Amplifier Speaker Cabinet Leg Pads, D17x15xH5mm SIZE - 0.669 Bottom Dia x 0.591 Top Dia x 0.197 Height (D17x15xH5mm); Hole Diameter: 0.118"/3mm; Washer Diameter: 0.276"/7mm PACKAGE INCLUDING: 20 x Tapered Rubber amplifiers/cab feet; More stable and durable; Non Marking High Quality PROTECT YOUR FLOOR - The rubber feet can protect your beautiful hardwood, ceramic tile and linoleum floors from scratches and save your furniture feet, also can keep your furniture from moving or sliding around GREAT CHOICE - The rubber feet is used for cutting board, furniture, instruments, display shelf, machinery equipment, experimental equipment, distribution box, guitar bass amplifier and mechanical equipment, etc EASY INSTALLATION - (Screws NOT Included) The tapered rubber feet have a through-hole and a recess for mounting with screws