For Table Top Dolly Main 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 Hard coated polyurethane wheels 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. There are 3 1/4" holes on the plate, which makes you able to install your camera forward, middle, or backward. Weight: 512g Length: approx 20cm Color: Black For 11 inch Articulating Magic Arm This magic arm is with Precise Design, allows universal mounting options. Supplies 1/4" screw adapters to fit camera, lamp holder and other accessories. Articulating design, with one knob locks all position. Superior quality, precise and durable design. Length (Max): approx. 285mm/11" Height: approx. 60mm/2.4" Max. Load: up to 2kg Net Weight: approx. 255g Package includes: 1x Table Top Dolly (Black) 1x 11 inch Articulating Magic Arm (Just includes one magic arm. Not included Ballhead, Camera, Video light)