The Gill® PV Crossbar Height Caliper offers jumpers an easy way to measure their pole vault crossbar height. The track and field tool is designed to fit over almost any vaulting pole. FEATURES: Used to measure the pole vault crossbar height Fits over almost any vaulting pole Made in the USA One-year manufacturer’s warranty Model: 723A For additional information relating to the Manufacturer's Warranty, please contact 217-367-8438.