PROVIDES A SAFE AND EASY WAY TO SHARPEN KNIVES. PRECISION CRAFTED WITH COURSE AND FINE SHARPENING WHEELS. STURDY SUCTION CUP TIGHTLY GRIPS SURFACE FOR USE. KNIVES ARE EASILY SHARPENED BY PULLING THROUGH SHARPENING SLOTS. 5 3/8" L X 2 7/8" W X 2 1/2" H