The Stylus Reach 18 is machined from an aluminum case with non-slip knurled grip and flexible cable insulated with PVC. It features a high-intensity white LED buld, momentary blink switch and constant "on", and pocket clip. The flexible cable twist and turns into any position to help light the most out-of-the-way places. The Stylus Reach 18 is water/impact resistance and uses 3 AAAA size alkaline batteries.