I have drop my Maglite onto hard floor , submerge it in water , and subject it to the abuse of a tornadic four year old . the all metal -lrb- not plastic ! -rrb- case be nearly indestructible . both end be thread and be fit with snug o-ring to protect the innards from rain , humidity , and submersion . the lens housing twist to adjust the focus of the beam and come off to allow it to be use as a candle -lrb- handy for night in a tent or during a power outage -rrb- . in addition , a extra bulb reside in the base !