A simple and effective tool that makes compressing the valve spring for keeper removal a snap. Simply hook the "C" hook over the rocker shaft, locate the "L" hook over the spring cover plate, and press the handle downwards to compress the spring.
The keeper can then be removed and the valve spring separated from the valve.
To re-assemble, just perform the steps in reverse order to re-install the keeper. It's that simple. 3 lbs (1.5Kg) shipping weight.