Professional 504HD sytem combined with middle spreader 546B tripod. Two-stage, extremely rigid, stable system. Able to counterbalance equipment weight up to 7,5kg (16,5lb). The 504HD 546BK has a die cast aluminium crown with a built-in 75mm bowl. The tripod's telescopic mid-level spreader helps set leg angles accurately. Leg locks are se-cure And reliable, And spiked feet with rubber overshoes are provided for solid grounding on both uneven terrain And smooth floors.The tripod can be used with various dollies. Equipped with bag.