3 Inch Swivel Caster Wheels Set of 4, Locking Casters Heavy Duty Total Capacity 330lbs, Metric M8 1.25 Threaded Stem PU with Brake, Castors for Carpet Hardwood Floors Workbench Bed Frame.

Standard Metric Size?Stem size: M8 (8 mm)-1.25×1?, Stem diameter: 8mm, Stem length:25mm, Wheel diameter: 3?. Each caster kit includes 4 wheels with locking brakes, 4 threaded embedded parts, 4 nuts, 4 washers and 1 wrench; No Noise, Non-Marking?the Precise ball bearings, 360 degree swivel and rubber wheels make it rolling smooth and quiet, bid farewell to harsh noise, suitable for outdoor, hardwood floors and carpet; Heavy Duty?Steel Industrial threaded stem casters support 330lbs capacity each set; Lockable Brakes?The safety dual locking brakes lock both the swivel and wheels efficiently; International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.