Very simple, thin-walled, with rubber insert to grip the fork. Slim. Short. Connects to any universal joint or extension for hard to reach spark plugs. Before disconnecting, mark the cables and take photos with your phone for reference. When I was a kid we didn't have camera phones. We used tape and a pen and marked each wire and position. Use a wire puller so you have the best leverage and your hands don't slip off and damage the wire connection. Use a spark plug tool with a flourish. , longโฆ