Wheel Size: 1"x 05" (L*H) Bore Diameter: 019" Top Plate Size: Caster: 15" x 13" x 004" Fixed Caster: 14" x 08" x 004"(L*W*H) Height: Swivel Caster: 38cm/15" * Fixed : 38 cm / 15 inch * Material: plastic, metal * Color: white, silver tone * Comes with 2 fixed castors and 2 swivel casters; * Silver color rectangular metal plates, white plastic wheel * Low rolling when starting and rolling, silent and smooth running * Suitable for small , carts, furniture, racks, etc. Package content: 2 swivel casters 2 fixed casters Only the above package contents, other products are not included. Note: Luminous and different displays may cause the color of the item in the picture a little different get from the real. The allowable measurement error is +/- 1-3 cm.