10mm Thread Diameter 2" Wheel Rotatable Caster Black for office Chair Product Name : Threaded Stem Caster Wheel;Type : 360 Degree RotationDouble Wheels Wheel Size : 50 x 10mm / 2"x 0.96"(D*T);Total Size (Approx.) : 70 x 50 x 80mm / 2.8"x 2"x 3"(L*W*H) Threaded Dia. : 10mm / 0.39";Thread Part Length : 1.6cm / 0.63" Material : Plastic, Metal;Color : Black Weight : 100g;Package Content : 1 x Threaded Stem Caster Wheel