Non lethal self defense thing. Printed in 2 halves. Bond together with adhesive, acetone, 3dprint pen or a little while in the oven. The tip is for generating a large amount of force in a small spot, NOT FOR PUNCTURING/STABBING(it's a tad blunt and wider). The blade end will also cause some nasty scratches, but not shear through flesh like a traditional knife. In the event that you have to use this, the ridges in the backside can potentially collect DNA off the attacker as well. Be safe, Be smart.