The single prism set is a premium series, 0/-30mm constant prism set. It is fully compatible with leading manufacturers such as Trimble, Sokkia, Topcon, Pentax, Nikon and many more.
Features
All metal holder & target
Hermetically sealed 2-1/2" (62.5mm) precise prism
Tension adjusting brass knob
Brass 5/8" x 11 bayonet adapter