Copper-coated mini prism, diameter 25.4mm. Equipped with a level bubble, facilitates easy and precise leveling Pole Diameter 12mm, with 1/4"-20 thread, aluminum Material, Pole can be adjusted in length as required, extends up to 1.2m Prism constant: -30mm(Use it to topcom/sokkia/nikon type total staton the prism constant is -30mm ；when you use it to leica instruments， the prism constant is not -30mm) Package: Mini prism X1; 30cm Poles X4; Soft bag X1; If you find a defect, or any problem, please contact us at your convenience!

LS2015 Survey Prism With 4 Pole

Prism Diameter: 25.4mm

Prism constant: -30 mm

Pole Diameter : 12mm

Pole Material : Aluminium alloy

Package: Mini Prism+ Four poles(30cm each)+ Soft bag

Note: when you use it to topco/sokkia/nikon type total staton the prism constant is -30 mm ；when you use it to leica instruments， the prism constant is not -30 mm