The Sokkia 724807(SOK60857) tilting prism assembly comes with a 62mm (2.5") silver-coated prism mounted in a sealed cannister, a metal 5.5" x 7" fluorescent orange target, and a metal yoke. Formerly Sokkia 724807.
The prism can either be mounted in a -30mm or zero offest position. Locking knob in back of the prism locks the prism and target in the desired tilting position. Prism Comes with a protective padded nylon carrying case.