Color: Black + Blue Material: aluminum magnesium alloy + plastic Length: 170mm Width: 60mm (max) / 45mm (middle) Wheel diameter: 60mm Wheel pitch: 90mm (between left & right wheel) / 70mm (between front & back wheel) Load bearing: 30kg Wheel rotation angle: 90 degrees Universal 1/4" adapter Designed to help you create more dynamic tabletop shots, making cool video with your DSLR Product Dimension: 20 x 13 x 6cm, net weight: 523g Package Dimension: 22.4 x 14.5 x 6.7cm, weight:615g Package included: 1 x Dolly Skater