Seriously....Once you try a Salty Reef Suicide Knob you will never go without it again. It's 1-1/2" x 2-1/4 inches of solid stainless steel with precision bearings and is perfect for maneuvering your yacht to the dock, and stellar for trolling — much easier than hand-over-hand technique. Comes with everything needed for quick assembly, PLUS the positive locking clamp is easy to install and integrates well with any helm - no slipping, guaranteed. Salty Reef Marine Hardware gives you a full line of AISI stainless steel 316 products that are trusted by boaters world wide and USCG Approved. ***NOTE: DOES NOT FIT MOST CAR STEERING WHEELS.