General description The 4 Pack 3' Locking Swivel Caster features a threaded shaft and is designed for easy mobility of carts, furniture, and workbenches. Made from durable polyester and steel, these non-marking polyurethane wheels ensure quiet movement across all types of floors, making them ideal for both home and professional use. Technical specifications Total Height: 13.3 cm / 5.2 inch Wheel Diameter: 7.5 cm / 3 inch Wheel Thickness: 2.1 cm / 0.83 inch M12 Thread Size: 1.2 x 3 cm / 0.47 x 1.2 inch (D x H) Installation Easy installation with a threaded shaft for secure attachment. Usage Perfect for appliances and furniture including coffee tables, seats, bookcases, plant stands, shoe baskets, toy baskets, shopping baskets, workbenches, carts, trolleys, and other heavy items. Other information Brake design locks both the wheel and swivel bearing for enhanced safety. 360° rotation allows for easy maneuverability.