Features 1、4 SECTION: The prism pole includes four sections, with universal standard interface, easy to install and disassemble. 2、ALUMINUM ALLOY BODY: The prism pole is made of aluminum alloy, which is light and sturdy, hard to corrode, ensuring durability. 3、HIGH STABILITY: The pole has been thickened to ensure stability, as too thin a rod will cause instability and inaccurate measurement data. 4、POINTED FEET: This prism rod is very suitable for difficult to operate positions such as wall corners, and is commonly used for ground measurement. 5、LEVEL BUBBLE: The aluminum prism rod has high concentricity, comes with a level bubble, can ensure accurate measurement. Specification Item Type: Prism Pole Material: Aluminum Alloy Color: Silver Red Prism Constant: 0mm Specification: 4 x 30cm section, 50mm pointed, 1/4in thread Diameter: Approx. 12mm/0.5in Applicable Model: Suitable for total station prism such as for TOPCON, for SOKKIA, for NIKON South Application: Detection of tunnels, subways, mines, highways, etc. Suitable for measuring instruments such as for trimble Use: Widely used in various industries such as subways, railways, tunnels, dam, steep slope, etc. Package List 4 x Prism Pole 1 x Level Bubble 1 x Spring Hook 1 x Storage Bag