Uxcell a14071600ux0660 Shopping Wheel Trolley Brake Swivel Caster, 1.5-Inch, Black, 4-Piece Product Name : Caster Wheel;Material : Polyurethane, Metal Color : Black, Silver Tone;Threaded Diamater : 8mm(M8) Threaded Length : 25mm/1";Wheel Diameter : 40mm / 1.5" Top Diameter : 35mm/1.4";Overall Size : 90 x 80x 35mm / 3.5" x 3.1" x 1.4"(LWT) Weight : 707g;Package Content : 2 x Brake Caster Wheel2 x Swivel Caster Wheel