Mrs Anderson's Artisan Bread Lame is specially designed for professional and artisan home bakers to easily score dough to control the expansion of each loaf as it bakes. Scoring marks also create a pattern in the dough for homemade loaves of bread with an artisan beauty and professional finish. It's super easy to use. Simply slide the Bread Lame rod carefully through a slot in a blade front. Slide the rod up the back of the blade and through the slot in the opposite end of the blade. The Bread Lame is now ready for use. It includes the Bread Lame Tool plus 15 double-edge dough scoring blades. Blades can be rotated to different corners to maximize their uses.