Please look for the Luomorgo brand. We take every customer seriously and provide our customers with the most cost-effective products responsibly! Feature: Usually used for small projects and movable furniture, including rolling workbenches, tool carts, dressers, crates, under-bed storage, shoe cabinets, toy boxes, cabinets, bookshelves, easels. Various equipment applications, including: flight cases, instrument cases, display/exhibition equipment, dolls, tool boxes, light machinery, equipment racks, mobile workstations, speakers, cabinets, racks, furniture, etc. 360 degree rotation, very quiet and sturdy, protecting the floor from scratches. Specification: Wheel Dia: 1 inch / 25mm Wheel Width: 0.5inch / 13mm Overall Height: 1.5inch / 38mm Plate Size: 1.5 x 1.3inch / 39 x 33mm(L*W) Hole Center To Hole Center: 1.2 ¡Á 0.94inch / 30 x 24mm Mounting Hole Diameter: 0.16inch / 4.2mm Screw Size: 4 x 16mm(Dia*Lenght) Ball Bearing: Single ball bearing Material: High Quality rubber, TPE & metal, durable Package Includes: 4 x 1 inch caster wheels(2 casters with brakes & 2 without) 20 x screws 1 x screwdriver 100% Risk-Free Shopping: If you are not satisfied with any Luomorgo products, we have nothing to ask and let you enjoy a full refund. Because we want our customers to enjoy a 100% satisfied shopping experience.