METALTECH's 8 in. Polyurethane Caster Set w/ Brake & Directional Lock is designed around the needs of mobile drywall equipment where maneuverability and stability are both important. The polyurethane construction offers a balance of durability and floor-friendly performance, while the braking mechanism helps prevent unintended movement during work. A directional locking feature further improves handling when transporting a cart through corridors, staging areas, or other confined spaces. As a caster replacement set, it is suited for maintaining compatible METALTECH drywall carts and keeping material-handling equipment functional and easier to control on the jobsite.