ODI L31RGB-S Rogue PWC Lock-On Grips Silver – No Flange, Slip-Free, Fits Jet Skis with Trigger/Thumb Throttle ODI L31RGB-S Rogue PWC Lock-On Grips in Silver feature a larger grip profile with raised pads and knurled texture for superior water-channeling traction. Designed for use with thumb or trigger throttles. Made in the USA with ODI's patented 100% slip-free Lock-On technology.