Not only a precise and useful tool but a work of elegance \n Compatible with wheels from 2029" and all hub combinations \n Uses a unique spring loaded mechanism to drop the plunger instead of time sucking threaded indicators \n Includes stand off feet for checking dish with the tire in place, even the big fat ones \n Abbey Tools are priced to be used as shop tools, not for resale \n Made in the USA; Bend, Oregon