ULTRA-HIGH HARDNESS MATERIAL: pen made with high grade stainless steel, tungsten steel attack head, sturdy, corrosion-resistant, easy to carry.

KEY CHAIN DESIGN: lightweight and portable, full length pen that is as small as your door key, stable ball pen quality, beautifully crafted personal pen.

WITH ATTACK HEAD: easy as glass breaker tool when you are in emergency, hard stainless steel case with waterproof rubber ring, no water seepage.

MULTI-PURPOSE FUNCTIONS: can be used for writing, defense, glass hammer and so on.

You can put in your shirt pocket, backpack, jeans, etc. Also, it can go through the airport security check.

Size when open: 85 x 11 mm

Size when closed: 72 x 11 mm

Weight: 42 g