Product description:Chris Reeve Umnumzaan is a tactical folder with a piercing tip on the blade and a glass breaker. There are O-rings on the thumb studs help silence the sound of it locking into place for quieter deployement. Chris Reeve Knives sets the standard for the industry. Literally everything gets compared to a Chris Reeve because their tolerances are so precise, and they are made so consistently. They win the Blade award for Whether you are looking for a tactical folder or a utilitarian knife you cannot go wrong with a Reeve.