Item Type: Caster Wheel_x000D_Material: TPR rubber_x000D_Single Load: 30 kg / 66.1 lb(approx.)_x000D_Floor Plate Size: Approx. 45 x 37mm / 1.8 x 1.5in_x000D_Installation Hole Distance: Approx. 30 x 35mm / 1.2 x 1.4in_x000D_Installation Height: Approx. 50mm / 2in_x000D_Quantity: 4Pcs_x000D_Uses: Industrial casters 1TPR rubber material caster wheel is quiet and wear?resistant, durable and not hurting the ground 2Easy to use, can be directly installed on the design part of the host with bolts, convenient and simple 3The base is an integral structure, with large carrying capacity, simple and practical 4The package contains 4 industrial caster wheel, convenient for you to use and replace 5Orientation caster wheel is silent, come with stable structure and long service life4 x Caster Wheel