The 9942 Small Optical Pedestal allows you to mount our tiny mirror mounts to a full sized optical table. The thick stainless steel construction gives a stiff connection to the optical table, providing a stable yet compact support. The 9943 is 3/8 in. tall and is used to bring a tiny mount to a standard 1/2 in. increment beam height. This pedestal has a 2-56 threaded hole on the top and an 8-32 threaded hole on the bottom.