Hirate 4 Pack Threaded Stem Casters 3/8"-16UNC, 3 inch Caster Wheels with Hex Nuts for Home Furniture Workbench Trolley Carts -2 Casters with Dual Brake and 2 Without-

A good caster will help you prevent costly floor repairs and forget the desk chair mats. And lockable casters let you prevent unwanted movements when you’re sitting, which is especially common (and annoying) on hard surfaces. Hirate Chair Casters with Brakes will meet your need. High quality polyurethane material will not to scratch or leave marks on any surface, protect your floor perfectly. There are 2 Standard Casters and 2 Casters with DUAL Locking Mechanism, you can fix your chair as you like! Features: ?2 PCS DUAL LOCKABLE CASTER WHEEL? --The Stem and the Wheel both will be fixed simultaneously if the brake is pushed down. -- With brake, effective to stop and fix the device and prevent it moving to hurt others. ?HIGH QUALITY MATERIAL? -Made of high quality polyurethane, which is high mechanical strength, shock absorption and low-noise. ?SMOOTH & QUIET ROLLING? -Two precise bearings and soft polyurethane ensure that you can slide and glide around in total silence with these swivel casters. Specification: *Stem Type: IMPERIAL SIZE *Stem Diameter: 3/8" *Stud Length: 0.79"(20mm) *Wheel Type: Threaded Caster *Wheel Diameter: 3"(75mm) *Wheel Width:0.87" *Installing Height: 3.8" *Wheel Material: Polyurethane *Bracket: High quality steel - galvanizing *Double Bearing: Steel ball bearing *Total Load Capacity: 550 lbs Package Contains: 2 x 3" Stem Caster Wheels with DUAL BRAKE 2 x 3" Standard Casters without brake 4 x 3/8"-16UNC Hex Nuts Hirate Heavy Duty 3/8" Threaded Caster Wheels Set of 4-A must have for DIY projects at home.