Amzdeal Professional 11inch Mini-Dolly Tabletop Dolly Stablizer Skater Magic Arm for Digital SLR Cameras Engineered to have scaled adjustments to make precise shot sequences and precise adjustments to the shooting process With 1/4"adapter screw thread to connect to your camera,ballhead,magic arm etc. magic arm is with Precise Design, allows universal mounting options. Supplies 1/4"screw adapters to fit camera, lamp holder and other accessories. Dolly table body is made of metal,sturdy enough to carry you DC and DSLR cameras. Precision extruded industrial grade anodized aluminum construction.High quality durable and sealed bearings on both sides of each wheel. This mini desktop camera slider car will be very helpful when you want to take photos from different angle by moving your camera. Quick move and save time. The precise scale on the disc helps you sliding your camera in the right direction, with blue lock screw. Articulating design, with one knob locks all position. Superior quality, precise and durable design