Specifications: 1)Material of the caster: PA 2) Size of the caster: 2" 3) Load cap: 25, KG 4) Fork of the caster: Steel 5)Optional screw: M8x25 6)Bearing: No bearing 7) Zinc plated finish for corrosion resistance 8) Zerk fitting in swivel race for lubrication 9) Hardened raceway available 10) Turn quickly, load big weight, beautiful, wear resisted The material and the stem can be changed as customers' request. Screw specification(M) length of screw(L) 3/8 16 UNC-2A 3/4in; 1in; 1-1/2in M8 25mm M10 15mm Wooden case or carton