Feathers Beaky Free Range Chicken Grit Premium grit for all chickens with nothing artificial added. Aids digestion and general health and for super strong shells Poultry Grit Mix Flint Grit Limestone Grits With Oyster Cockle Shell Added Charcoal for Palatability Feeding guide: Should be available at all times, you can either scatter some on the ground so they forage for it or place a handful in a bowl inside the run. Ingredients: Flint Grit, Limestone Grit, Crushed seashells, Charcoal