Simple and it works...with skill. Not for everyone. It's soft rubber and wraps around the throttle so you can connect it to itself and have the fat part below your palm. I tried it out and it require some practice but I think its going to work for me. I've been having a pain in my wrist similar to carpal tunnel and this doohickey/gizmo does the trick for me. I love it when a company comes up with something so inexpensive and effective. Frank at Powerhouse helped me find this in the middle of working on a several thousand dollar turbo job. Pretty cool too. The negatives: Sorry the photo is upside down. I'll have it corrected. Most important...this can be dangerous if you use it too casually before you know what you're doing. Please be careful.