Click Stands features a clever interlocking mechanism that allows to fold stand flat and click it to another just in a snap. The unique four-way interlocking design provides no boundary of having stands put together and keeping your kits well organized when they are closed for storage or transport. Constructed by lightweight aluminum alloy with compact size makes this portable stand ideal for outside shoots or moving around the studio. Air-cushion is equipped to prevent lighting fixture from slamming down when the locking knob is not tightened properly. Optional strap with two clasps can be attached on the plastic locking loops to easily carry a set over your shoulder. • Bi-color injection knobs offer a positive locking and ergonomic grip. Quick release clamp design on the central column for easy setup.