Product Name: heavy duty casters M10 threaded stem; Material: Polyurethane and Rubber Wheel Coarse thread metric stem M10mm x 1.50mm; Threaded bolt: mounting height 72mm, Stem diameter: 0.4"/10mm - Stem Length 1"/25mm;PU Rubber Wheel Diameter 2inch(50mm) The stem and wheel will be fixed if the brake is pushed down p> Gently moved without marking, will not harm your wooden floor Wheel size: 2 inch Mounting rod: Mounting Height 72mm Both the stem and wheel will be fixed if the brake is pushed down Dimension Total Height: 100mm/3.94 inch Wheel Diameter: 50mm/2 inch Wheel Width: 23mm Shaft Bolt Diamater: 10mm (M10-1.5 mm) Stem Bolt Length: 25mm/1" Mounting Nuts: M10-1.50 mm Maximum load: 50 kg per roll Package Contents 4 x Swivel Casters with M10 x 25MM Threaded Screw