Reed's A12VO is a Valve Packing Wrench. It has a 0" - 1-7/16" capacity. It weighs 1. 5 lbs. This wrench combination tool that helps maintain valves without stripping the nuts or gouging the wheel rims. One end is an adjustable wrench while the other end provides leverage to turn valve wheels with up to 5/8" thick rims. It fits O-style valve wheels, and the adjustable wrench end is great for hex nuts including packing nuts on valve stems. It has a lightweight design for easy portability.