The C1505 provides a rigid horizontal mounting platform for Thorlabs' Ø1.5" stainless steel posts. It features an array of mounting options including seven 1/4"-20 mounting holes, two 1/4" clearance holes, and four 1/4" clearance slots. Once the platform height has been established, the post clamping mechanism is actuated with at 3/16" hex key or balldriver.