Information:

Mini  Prism with 4 Poles  for  total station

25.4 circle prism

Prism constant:  +17.5mm (When you use it to leica total station. when you use toanother BRAND 

instrument . the prism constant is not  17.5mm)

Pole Material : aluminium alloy

Pole Diameter : 12mm

Package Contains:

 mini prism+four poles(30cm each)+bags (PLEASE CHECK ATTACHED PICTURE. THANKS.)