uxcell Office Chair Trolley Carts 40mm PP Wheel Top Plate Fixed Caster 4pcs Main Material: Polypropylene(PP), Steel; Package Content: 4pcs x Caster Wheel; Product Name: Caster Wheel Weight: 190g; Main Color: White, Silver Tone Overall Size: Total Height: 52mm/ 2"; Wheel Size: 40 x 17mm / 1.5" x 0.7" (D*T) Mounting Hole Dia: 5mm/ 0.2"; Mounting Hole Spacing: 35 x 15mm/ 1.4" x 0.6"(L*W) Top Plate Size: 45 x 25 x 38mm / 1.8" x 1" x 1.5"(L*W*H); Color: White, Silver Tone