The Kupo KCP-621B Baby Boom 3 sections telescopic arm with pivoting clamp and sandbag is constructed from 3 assembled aluminum tubes with black anodized surface treatment; can be fully extended to 210 cm and loads up to 3 kg. It is fairly easy to set up and breaks down with the provided Allen key on T-handle. Each tube of the Kupo Baby Boom telescopic arm has a 75 cm length, which is perfect for storage or transport. The included metal pivoting clamp can attach to shaft of most lightstands and is compatible with 20, 25, 28 and 35 mm diameter tubes. The supplied 4,5 kg wrap & go shot bag can easily be moved up or down the boom. Kupo Baby Boom telescopic arm features a safety wire for extra level of security.