This tool is used to duplicate thrown forms. The gauge has 2 measuring arms. 1 arm can be used to measure the rim while the other can measure the foot, hip, or other area on the form. Pointers on arms slide back to allow for more room while throwing or removing bat then slide forward to the fully extended position to measure and duplicate a form.

Gauge is designed to clamp onto the splash pan of most wheels. This tool should easily work on Speedball, Brent, and Shimpo wheels as well as others. See images to decide if your wheel will be applicable.

Throwing gauge consists of 10 plastic parts and 6 steel hardware parts. Shipped assembled.

SIZE- 20 cm x 30 cm or 7 in x 11 in

More info can be found here https://www.instagram.com/p/DG_zdZCxQMP/