When the water gets rough, your device shouldn't. The RAILBLAZA Mobi device holder with R-Lock is the adjustable, bomb-proof cradle that keeps your smartphone, GPS or handheld exactly where you need it - secure, visible and ready for action. With its grippy, soft touch rubber arms and fully adjustable R-Lock pivot joint, the Mobi holds tight to devices of all sizes without scratching or slipping. Whether you're tracking your route, filming the chaos or navigating new waters, the R-Lock system lets you fine-tune your viewing angle and lock it down for rock-solid hold. It's made for boats, kayaks, ATVs or anything that moves fast and doesn't wait for a touchscreen to catch up. Mount it to any RAILBLAZA StarPort base and roll - no tools, no worries, no regrets.