The AQUATEC T-Rex Dive knife is perfect for diving, camping, survival, fire departments and the military. The silhouetted one-piece dive / activity knife is getting more and more popular. The advantages of this type of one-piece knife blade is its thin profile and less weight to make it more portable, but the drawback is that it is difficult and awkward to hold. The T-Rex Dive / Activity Knife has solved this problem by having an ergonomically shaped handle with a thin plastic insert to give the handle a very comfortable feel.