Qty 1 piece(s) per pack Color Blue + black Material Aluminum alloy Socket Size 1/4 " Max Load 8 kg Max Height 32 cm Min Height 6.5 cm Other Features The screw in the middle is 1/4" the other is 3/8"; High quality aluminum alloy dolly suitable for SLR cameras and camcorders; Adjustable aluminum axles can also be locked in place; Provides a portable solution and professional results for compact video productions with DSLR camera; Front and rear wheels adjust to allow straight or circular movements and glides; Low-noise rubber-skate wheels for smooth running even on uneven ground; Hard rubber skate wheels are smooth and quiet; So calm and steady shot possible even on slightly uneven ground; 7" and 11" magic holder can hold camera camcorder or photoflood lamp Packing List 1 x Dolly car 1 x 7" magic holder 1 x 11" magic holder 1 x Hex wrench