The Twitch XL is the next evolution of the classic lockback design, with its patented pass-through lockbar from which the kick of the blade sticks through. Thanks to S.A.T. (SOG Assisted Technology), the blade is propelled open once the operator has initiated opening using the kick. Invented by Spencer Frazer, the Twitch XL is a 21st century lockback. The reversible SOG money/pocket clip can be used for low-carry or securing dollar bills and cards. Also included is a small safety that helps insure the knife wont open until youre ready. The safety can be engaged once the blade is open so that the locking bar cannot be released. So, in essence, you have two locks. Features: - AUS 8 stainless steel - Hardcase Black TiNi blade - Reversible SOG money/pocket clip - Ambidextrous one-handed opening - SOG Assisted Technology (S.A.T.) - Pass-through lock with kick, used to open the blade - Hard-anodized machined aluminum handles Specifications: - Blade Length: 3.25 - Closed Length: 4.25 - Overall Length: 7.5 - Weight: 4.2 oz.