The pressure pad cover is made from durable colloidal silica, rated for 100,000 cycles and 1 A electric current.  Your flashlight is activated just by any of the four sensors. The coiled cable is made from resilient PU material, 23cm in length when coiled, 80 cm in length when expanded. The tail adapter connected to the flashlight is made from T6-grade aluminum with Type III hard-anodized finish for anti-scratch and anti-abrasive durability. The side switch in the tail adapter is rated for 1A electric current and works separately to the pressure pad switch. Waterproof to IPX-8 standard. The tail adapter is 25.4 mm in diameter, 40 mm in length, and works with Fenix TK11R5, TK12, TK15, TA20, and TK21 flashlights. Total weight - 53.2 grams including pressure pad switch, coiled cable and tail adapter.