uxcell Chair 2 Inch Dia Wheel Square Top Plate Mount Swivel Brake Caster 4pcs Main Material: Plastic, Metal; Package Content: 4 Pcs x Caster Wheel Product Name: Caster Wheel; Weight: 350g Main Color: Black, Silver Tone; Overall Size: 75 x 45 x 65 mm/2.95" x 1.77" x 2.56"(L*W*H) Wheel Size: 50 x 15 mm/2" x 0.6"(D*T); Mounting Hole Center Distance: 26 x 26 mm/1" x 1"(L*W) Top Plate Size: 38 x 38 mm/ 1.5" x 1.5" (L*W); Mounting Hole Dia.(Approx): 5 mm/0.2"