●Made of Anodized Metal, Adjusting Mount range: 3-45mm ●Multi 1/4"-20, 3/8"-16 bracket mounting hole for convenient mounting converter ●Designed for hanging Lithium Battery Pack, Installing different Flashes with Lamp Adapter, etc. ●Compatible with Various Brackets to hang battery Pack, Install flashes with the properly lamp adapter(Sold Separately) ●Giving the protability, Flexibility and Multiple Purposes, it is widely used in studio photography