This is one of the coolest things we have. This pushblade dagger is the latest in FIBERGLASS REINFORCED PLASTIC TECHNOLOGY.... Compact and lightweight, (2.5 inch blade, 5 inches long overall) this can be tied, tucked, taped or concealed almost anywhere without setting off alarms. Since it is not made of any kind of metal, it won't rust. This comes with a key ring in the handle if you want to use it for that, or you can remove the key ring. This is EXTREMELY tough and sharp as hell.....I punched a big phone book with this, and it sliced right through.
Be careful, and check your local laws before leaving your house with one of these.