When you’re on two skinny wheels sharing the road with multi-ton 18-wheelers, you can get a little nervous. Anything you do to increase your level of safety is a good thing, and the Rearviz wrist-worn mirror pictured above is as good an innovation as we’ve seen lately. Featuring a convex mirror for a wider angle of view, the device allows you to see what’s behind you without having to contort yourself away from the road in front. It’s made from waterproof materials and features a pouch to insert contact information as well as medical data that could come in handy if all your precautions fail and you find yourself on the way to the hospital. It comes in two sizes, one for the wrist and the other for the forearm and cost between $23 and $37. However we’re not exactly sure when it’s going to be available.