Features SPECIFICATIONS: 3 inch universal wheel, thickness is 35mm, with 63x96mm connecting mount, easy for installation and replacement. NYLON ROLLER: The caster is made of excellent nylon, which is resistant to high temperature, wear and tear, and has a long service life. THICKENED RIVET: The caster roller is fixed with thickened rivet, with reinforced shaft technology to ensure flexible rotation of the roller. EASY INSTALLATION: The universal caster has standard mounting plate and openings, with a compact size for easy installation and use. WIDE APPLICATION: The 3 inch caster is suitable for industrial cart, baby chair, mechanical equipment, hospital bed, and office chair, etc. Specification: Item Type: Universal Caster Material: Nylon Maximum Operating Temperature: 280℃ Caster Outer Diameter: 3 inch Caster Thickness: Approx. 35mm / 1.4in Connection Mount Size: Approx. 63 x 96mm / 2.5 x 3.8in Package List: 1 x Caster Package List 1 x Caster