The Smith & Wesson 2nd generation Magic Assist Black Knife has a 3.6 inch blade and 5 inch handle. It is made of 4034 stainless steel. It features a spring assisted opening. It also features an integrated glass breaker. It weighs 7.4 ounces. The magic assisted opening system helps fold open the blade single handedly. 
 
Blade length: 3.50 in
Overall length: 8.50 in
Blade material: 4034
Handle material: Aluminum
Comes complete with pocket clip
Weight: 7.15 oz
Lock type: Liner lock