Quickly and easily sharpen knives prior to cutting food with this innovative multi-functional chopping board by Joseph Joseph. Featuring a ceramic sharpener built into the handle, it also has a handy non-slip edge to ensure the board stays in place while sharpening. Simply stand the board upright on its side on a dry, flat surface, grip the top edge with one hand and use the other hand to draw the blade of the knife through the sharpener towards you 3-4 times; make sure you wipe away any filings with a damp cloth before cutting food.PlasticDishwasher safe Shop At House Of Fraser