Keeping the show together—safe, sound, and rock-solid! Mount your fixtures, suspend structures, and lock those tubes with zero drama. Made from high-quality extruded aluminum, these bad boys are built to last and take the heat. Available in three sizes to fit tubes from 48-51mm (1 7/8"- 2"), 32mm (1¼"), and 60-63mm (2 3/8" - 2 ½").