this flashlight be build to last a lifetime . if you be a engineer you 'll like the design and quality of this product . I be a little surprised that the price be not higher . the aluminum be of a heavy enough gauge to resist ding , the switch have a good crisp feel to it , and the fit of the part be very good . it have a good heavy feel to it -lrb- even without the battery -rrb- . only negative : you have to be careful where you sit it because it will get away from you fast and it be too tall to stand on end . would be perfect with a non-round head shape that would resist rolling .