Spyderco TriAngle Sharpmaker Set - Model YS 204MF

Triangular for sharpening plain edges on the flat sides and serrations on the
corners. A furrow running the length of each stone lets you sharpen pointed
items like fishhooks, darts and awls
Set Sharpening angles of 30°, 40° for knives and a 12.5°scissor setting
2 x medium-grit (brown) 178 mm x 13 mm stones for aggressive sharpening
2 x fine (white) 178 mm x 13 mm stones for professional grade finishing
2 x Brass safety rods to protect users hands
Self-contained ABS plastic base and lid
System comes with instruction book and DVD.