Check the listing for details. Sliding Gate Wheels Kit Rolling Gate Hardware Set Heavy Duty Gate Roller. Color: Silver, Condition: New. Listed at 92.05 USD. Specification Color: Silver Style: Modern Material: Rubber, Steel Process: Galvanized Anti-rust Treatment Maximum Load Capacity: 272kg/600 lbs Suitable Door Frames And Tracks Ranging: 32-48mm/1.26-1.89 in U-bolt: Fits Door Frame Pipe Outer Diameter: 3.49- 4.76cm/1-3/8″~1-7/8″ Latch: Fits Steel Column Outer Diameter: 4.13- 4.76cm/ 1-5/8″~1-7/8" Pipe Track Wheel: Fits Door Frame Pipe Outer Diameter: 3.49 - 4.13cm/ 1-3/8″~1-5/8" Track Bracket: Fits Column Outer Diameter: 4.13-7.3cm/ 1-5/8″~2-7/8" Wheel Outer Diameter: 16cm / 6.3 in Double Wheel Frame Overall Length: 30cm/ 11.81in Each Pipe Track Wheel Size(L*W): 12.72*6.02cm/ 5.01*2.37 in Each Track Bracket Size: 12*3.5cm/ 4.72*1.38 in Latch Size(L*W): 10.8*8.3cm/ 4.25*3.27 in Package Size: 35*32.5*17cm/13.78*12.8*6.69 in.