A new larger and more economical natural red clay grit that birds love. Use as is or add to your oyster shell grit. Another idea is to mix it with our #676 Grit Concentrate. Rich in minerals and trace elements, a must before and during the egg laying period. 100% natural. Fired at very high temperature (over 1000 degrees C) in a special furnace, before being ground. 100% natural. Imported from Belgium. Naturals Red Stone Grit 6 lbs.