SmallRig Quick-Lock Photography Heavy Duty Tripod Dolly 5020B is a universal dolly designed for effortless maneuvering heavy duty tripods. With a load capacity of up to 20kg (44.1lb), it is compatible with tripods with an extension range from 280 to 450mm (11 to 17.7in). The newly designed quick-lock buckle ensures swift and secure tripod locking.Featuring 3-inch soft rubber wheels and a dual pedal design, bending down is no longer necessary - a simple step on the pedal switch effortlessly unlocks the dolly. Moreover, this dolly minimizes noise while in motion, ensuring uninterrupted shooting.