For use with thumb throttle, includes left and right grip. Spider Grips gives you a solution to ride your ATV with comfort and knowing your have a sure hold with the Slim Line SLT grips. The Slim Line SLT grips use Spider Grips dual-density design that features a unique soft rubber pattern on the outside for comfort and a hard rubber that holds firm to your handlebars. The Slim Line SLT grips have a smaller outer diameter for those that prefer a smaller grip.