Spyderco C12SBK2W Spyderco Matriarch 2 Serrated with Emerson Wave feature. Fully serrated agressive reverse "S" blade shape. VG-10 blade steel. Emerson Opener. Hollow Grind Black bi-directional FRN handles with four position Ambidextrous Clip. Dual skeletonized nested liners. Lockback design with Boye dent. Blade length: 3 1/2". Closed length: 5" Seki City