Wheel diameter: 38mm Wheel width: 17mm Thread: M8x20mm Installation height: 54mm Turning radius: 59.5mm Load capacity: 22kg per wheel Double open-end wrench: 10x14mm Hex nut: 8mm Grub screw: M8x15mm Wheel body material:TPE rubberWheel body color: brownCase material: chrome steelAbout our product:Our product is made of high quality rubber and is characterized by shock absorption, wear resistance, cold resistance and heat resistance.In addition, the caster with brake can rotate 360°, allowing you to change and stop the direction as you like.Durable, safe and long-lasting!You can use our casters with confidence.Scope of application: Ideal for coffee tables, supermarket carts, bookcases, plant stands, workbenches, shoe cabinets, toy boxes and other small mobile equipment and furniture.How to choose the wheel load capacity You can refer to the following formula: Flat ground: 4pcs load capacity = 1pcs x 3pcs load capacity.4Pcs 38mm load capacity = 22kg x 3 = 66kg Up and down: 4pcs load capacity = 1pcs x 2 load capacity.4Pcs 38mm load capacity = 22kg x 2 = 44kgScope of delivery: 4 pieces 38mm transport rollers with brake (M8x20mm with thread).