ENHANCED MOBILITY - Effortlessly move your equipment with these 80mm casters, designed for smooth rolling across various surfaces in your studio or on location, saving you time and energy. SUPERIOR STABILITY - Each caster features a reliable braking mechanism, ensuring your light stands remain securely in place during shoots, preventing accidental movement and ensuring safety. ROBUST DURABILITY - Constructed from high-quality steel, these casters are built to withstand the rigors of professional use, providing long-lasting performance and reliability for years. SIMPLE INSTALLATION - Quickly attach these casters to your light stands with the included 22mm square adapter, making setup and teardown a breeze, so you can focus on your photography.