Uxcell Trolley Top Plate 360-Degree Rotation Swivel Caster, 2-Inch, 4-Piece Product Name : caster wheel;material : PU, metal Color : black;wheel size : 50 x 24mm/2" x 1" (d*t) Screw holes distance : 55 x 35mm/2.2" x 1.4 inch (l*w);hole size : 11 x 8mm/0.4" x 0.3 inch (l*w) Top plate size : 70 x 50X 2mm/2.8" x 2 inch x 0.08 inch (L*W*T);total height : 70mm/2.8" Weight : 1065G;Package Content : 4 x swivel caster wheel