Plug the electronic throttle control notches on TBW (Throttle-By-Wire) handlebars Allow the use of TBW bars to be used on non-TBW bikes. This will give older bikes or bikes that do not come with TBW more handlebar options. Equals out the right and left side of the handlebars Dimensions: Overall Length: 1-1/2”, Length of Portion Sticking out from Bar End: ½”, Overall OD: 1”, Stepped Portion that will fit into the Handlebar: 13/16” Made in the USA