Features:*Heavy obligation metallic plate, Large load capacity, Allow for 360 degree rotation, Movement no voice, no wheel marks.*Replacement to your outdated and damaged castors.*Easy to install, in use.*Used in furniture, industrial, day by day transportation, machinery and equipment, workshop vans and other areas.Specifications:Material: Plastic and MetalOverall Height: 53mmWheel Size: 40mmTyre Width: 30mmFixing Plate Size: 34mm x 34mmScrew Hole Size: 5mmPackage Contents:4 x WheelNote:1. The real shade of the article may be slightly varied from the pictures proven on web page caused by many points akin to brightness of your video display and light-weight brightness.2. Please allow slight guide measurement deviation for the data.