Neewer Photography Professional Heavy Duty Tripod Dolly with Rubber Wheels and Adjustable Leg Mounts for Canon Nikon Sony DSLR Cameras Camcorder Photo Video Lighting This Tripod Dolly is an excellent dolly for use with your professional camera and video tripods, light stands, and background stands All Metal Ball Bearing Casters with Rubber Wheels for Ultra Smooth Roll Heavy Duty Construction for Professional Tripods Universal Fully Adjustable Leg Locks One-Step Easy Lock Locking Wheels