Specifications Item Model Number: 1703 Product Dimensions: 203 x 200 x 105 mm / 7.99 x 7.87 x 4.13 inch Net Weight: 2.0 kg / 4.41 lbs Material: Wheel: Nylon; Bracket: Q235B Wheel Diameter: 50 mm / 1.97 inch Bracket Dimensions: 203 x 128 x 105 mm / 7.99 x 5.04 x 4.13 inch Bracket Thickness: 5 mm / 0.20 inch Adjustable Wheelbase: 5 - 93 mm / 0.20 - 3.66 inch Bracket Shape: L-shaped Package Content Sliding Door Guide Wheels x 2 L-shaped Mounting Bracket x 1 M12x150 Hex Bolt x 2 M12 Nut x 6 M12x1.5 mm (Thickness) Washer x 4 M10x50 Self-Tapping Screw x 4 M10 Plastic Expansion Screw x 4 Open-End Wrench 19 x 1 Allen Wrench x 1