3 in

Gray Thermoplastic Rubber Swivel Plate Caster, 110 lb capacity, locking, smooth, durable, and secure, Made in the USA

Commonly used on utility carts, rolling storage racks, and mobile workstations that need both smooth movement and secure positioning when stopped

Well-suited for workshops, garages, and office environments where equipment is frequently moved between tasks but must remain stable during use

Also i for DIY builds like custom carts, shelving units, or portable tables that require dependable mobility with added control when locked in place