Aluminum clamp with 1/4inch & 3/8inch threaded hole for secure mounting of lighting equipment and photography gear Comfortable grip mechanism accommodates round/square tubes and textured surfaces, making it ideal for photography studios, event stage Essential tool for photographers, videographers, and studio professional requiring stable accessory placement in dynamic environment Adjustable clamping features oversized ergonomic handles for effortless grip on pipe, railings for mounting reflectors, microphones, or cables to poles, door, tables, or outdoor structures during studio setups