This pole features the leter TLV locking mechanism. The Leter twisting lock with vial (TLV) is wear-resistant for long life. The soft rubber knob is easy to tighten or loosen, even when wearing gloves! TLV’s feature a convenient 40-minute vial built into the lock. Moving the vial to the lock frees up space on the pole for other accessories! It’s constructed of sturdy aluminum tubing and a two-stage brass adjustable top-threaded tip. It’s finished with electrostatic powder paint coating on the outer pole and permanent silk-screened dual graduations on the inner pole. The two-stage 5/8×11-threaded tip adjusts for accurate H. A range of 50mm to 135mm prism heights can be achieved. Weighs 5.38 lb (1.5 kg). Aluminum outer and inner pole. Dual Grad (0.01 ft/cm). 1pcs x 2.5M LETER 8.5’TLV PRISM POLE 1pcs 5/8 thread connector 1pcs LEICA connector.
