Bronte Stainless Steel Tactical Pen Mini Keychain Survival Defense Tool Glass Breaker Full length pen that is as small as your door key (pen body: length 72cm x diamter 12cm; key ring: diameter 25cm) CNC machine cutting process, Original stainless steel polished. Hard stainless steel case with waterproof rubber ring, no water seepage. As self defense tool or glass breaker in emergency Packlist: 1x Bronte tactical pen, 1x replacement refill, 1x key ring