Description: Mini Prism with 4 Poles for total station 25.4 circle prism Prism constant: 0 mm/-30mm (Note: when you use it to topcon . sokkia. nikon type total staton. the prism constant is 0mm/-30mm when you use it to leica instruments. the prism constant is not 0mm/-30mm) Pole Material : aluminium alloy Pole Diameter : 12mm Package Contains : mini prism+four poles(30cm each)+bags |