The best edging tool EVER!! If you want to build up, and get just as close as you can to where you leak like a faucet, but don't want to go all the way over into an orgasm, USE BRUSHES. The soft, gentle bristles will bring you as close as you want to get, without sending you too far over. And then, once you're leaking precum, you can brush it all over yourself and use it as lube! :D