Welcome to Allen Instruments online store Welcome to our online store SECO 5910-05 Sliding Prism and Sectional Pole Kit SKU 5910-05-A $311.95 In stock Quantity: 1 Add to Bag Product Details This mini-prism holder tilts and slides up and down the pin poles. It features a 25-mm zero offset silver-coated mini-prism made of high-quality anodized aluminum. The vertical angle site cones double as locks, one for height and one for prism tilt. The prism has a 40-min adjustable circular vial. A height pointer is built into the holder for accurate measure. Includes four 1-ft (30-cm) pole sections each with 0.50 ft (15.24 cm) mark. Featuring a replaceable plumb bob point on bottom section. This prism includes an adapter so prism can be used on any pole or tribrach adapter with 5/8 x 11 threads. It also Includes adapter so the mini-prism can be used hand held to measure flat surfaces or corners. System bag included. Weighs 1.40 lbs (0.63 kg) Save this product for later Favorite