The Boker Plus 01BO047 Urban Survival Knife is an ideal knife for utilitarian use and knife enthusiasts. The 4 1/8 inch overall length, black finish, and 440c stainless steel scalpel-like curved blade with dual thumb studs are perfect for the lover of fine craftsmenship and design. Textured black aluminum handles with black finish pocket clip allow for a comfortable grip and easy storage. The glass breaker tip/false writing pen tip allows for additional uses. A chestnut tree is the world famous trademark of the Boker knife manufactory in Solingen, Germany. It represents innovative, high quality, exceptional knives, manufactured with pride, by hand, for over 145 years.