The Vanguard QS-55P Quick Shoe is an ultra-compact Arca-compatible quick-release plate with a 1/4" camera screw and anti-slip rubber pads to provide a solid link to your chosen spotting scope, video camera, or long lens. 

This lightweight and compact quick-release plate is perfect for longer lenses and spotting scopes where portability is key. Despite being lightweight, it features an adjustable 1/4" thread that can be moved forwards/back for the best balance, and a non-twist spring pin to make sure your lens is always pointing in the direction you want. If you want a longer base for a better fit, you can choose the QS-71P.