Thank Indigan for saving your eye and knuckles. This tool is designed to allow you to install your kickstand spring in a more controlled manner then a straight screwdriver.
To install the spring, hook the spring on the tool, and then set end of the tool on the kickstand peg. "The end of the tool is machined to fit over the kickstand spring peg." Gently lever the spring back onto or off of the peg.