A rock solid base for add in components.  The Quick-Mount Base e-blox is fabricated from 6063 Aluminum, which is black anodized.  It is available in the above sizes.  This e-blox is used to quickly insert a e-blox onto a rail system.  It is used for horizontal or vertical base clamping or fixturing components such as lighting & optics to switches & displays onto a dual rod type system.