4 Inch Caster Wheels Heavy Duty with Dual-Lock Safety Brake and Rubber Tire Wheels, Heavy Duty - 300 Lbs Per Caster for Workbench, Trolley, Cabinet, Swivel Rubber Wheel 4-Packs with mounting Hardware

HIGH QUALITY DUAL LOCKING - Constructed from non-marking rubber, these caster wheels operate very quietly while rolling and effectively absorb shock and vibrations. Ball bearing and dual locking deliver maximum loading capacity and safety. MAX FLEXIBILITY AND SAFETY - Swivel casters rotate 360 degrees, enabling smooth turning of the mating equipment. They are ideal for transporting light furniture and displays quietly and safely. HEAVY DUTY BEARINGS - The steel structure body is exceptionally durable and resistant to dirt, offering a 1400 lbs capacity for the pack of 4. UNIVERSAL USE - These wheels are suitable for a wide range of applications, including: Flight Cases, Instrument Cases, Display / Exhibition Equipment, Dollies, Tool Boxes, Light Machinery, Equipment Stands, Mobile Workstations, Speakers, Cabinets, Stands, Amps, Electrical Enclosures, Furniture, and more