Genuine Spydercoo Double Stuff 2 Double -sided sharpening stone with case. FEATURES: --Versatile, double-sided design is ideal for field use. --Coarse Cubic Boron Nitride (CBN) side sharpens edges quickly. --Fine ceramic side for touch-ups and finely polished edges. --Both stones feature a rounded edge for sharpening serrated blades. --Groove in ceramic stone sharpens fish hooks and pointed tools. -Protective suede pouch included. Approx 5" X 1 1/8". USA