SIRUI professional compatible video tripod dolly DT-06 is a video tripod dolly designed for SIRUI SH series tripod, which provides smooth and fast movements for compatible video tripods. SIRUI - Maximize Your Possibilities SIRUI insists on the concept of manufacturing high-quality products with superior craftsmanship and innovative technology. In the past decades, SIRUI was committed to improving and strengthening itself on the road of exploration, accumulation and development. Looking towards to the future, SIRUI will continue to promote the progress of imaging with its technology and innovation. SIRUI is changing people's imaging life with its aspiring attitude and creation. SIRUI Professional Heavy Duty Tripod Dolly Capture Your Imagination! Wide Compatibility: This Tripod Dolly is suitable for standard and professional tripods and light stands. Lightweight and Portable: Folding design makes it is lightweight and portable. Fast and Smooth Movements: The Tripod Dolly is equipped with 3 large rubber wheels and locking screw. Heavy Load Capacity: Max load capacity is 50 kilograms for optimal performance. Tripod clamp knob fits most of tripod leg size. Dia.(mm/inchs): 1110/43.7∣ Weight(kg/lbs): 2.92/6.44∣ Load Capacity(kg/lbs): 50/110.23 Lock the rubber wheel by pressing down the “ON”lock. Unlock the rubber wheel by pressing down the “OFF”lock.