trip meter repair tool

i have come up with a tool that goes on the shaft of the trip meter from

1963 to 1977 corvettes, these cable driven type trip meter resets bind from lack of use and poor design of cable routing. when applied to shaft increase leverage to break free iner cable. 29.99 + shipping(usually under 5.00) e mail snipped-for-privacy@comcast.net if interested . less than 1/2 price of cable. and no labor charges(at least2 hr job replacing cable)