1) Beam: Beam's length and size are based on place and the weight of lights or audios. 3M is normal and easy to transport or enter into lift.
2) Pillar: The height of pillar is according to customer's requirements. The size is smaller than beam.
3) Top-section: It is effected by beam, and used for hanging the hoist.
4) Sleeve block: The pillar is surrounded by sleeve block. Sleeve block make lifting the beam easier with wheels.
5) Hinge: It included in the pillar, the height normally is 1M.
6) Base: There are two kinds of bases, one is with wheels and outriggers, one is aluminum plate.
7) Hoist: Use hoist can lift the beam up to a certain height. It include manual hoist and electric hoist