This high-quality tribrach features an optical plummet and 2X magnification and a twist focus! Its reticule is composed of two small concentric circles. With a sighting distance of 0.3 m to 15 m, the tribrach has an accuracy of 0.5 mm per 1.5 m. It also has a locking forced-centering knob, a 5/8 x 11 base and an 8-minute circular vial.

Each weigh 1.55 lb (0.70 kg)