Stabbing pen

The KZ Xtreme Defense Pen appears to be designed for stabbing people with:


# 6061 Aircraft Grade Aluminum
# CNC Machined.
# Type II Class 3 Hard Anodized
.
# Ergonomic Design Provides Superior Grip and Comfortable Texturing.
# Threaded Cap.
# Slip Free, Knurled Center.
# Heavy Duty, 1/16 Inch Stainless Steel Heat Treated Pocket Clip

KZ Xtreme Defense Pen

(via Schneier)