Senbon

Senbon are pointed, military-grade steel needles with points on both ends. While normally used for medical purposes, senbon also double as projectiles that can be thrown with great accuracy in the hands of a ninja. Those with knowledge of the human anatomy can make especially deadly use of these, pinpointing vitals that could kill a target. Senbon are approximately 5" in length and weigh only ⅛th of a pound.