Xtraordinary Home Products Slice N' Slide Mechanical Cutting Board, White Install handle by sliding handle pins inside of holes in cutting board. Cut food on cutting Board. Squeeze handle together to fold the board for pouring or sliding food into bowl. To Sharpen knife, simply slide knife through blade sharpener located next to handle. To Clean & Storage: Remove handle by pressing in both knobes underneath board and pull out. To Store Knife, insert knife into knife slot in cutting board.