Mineral bell calcium charcoal. Mineral feed for birds. The mineral bell provides the mineral elements essential to your bird's well-being, such as calcium and charcoal, which helps to regulate digestion. Composition: calcium sulphate, calcium carbonate, charcoal, ground cuttlefish bone, salt, ferrous sulphate, zinc sulphate, copper sulphate, sodium selenate, cobalt sulphate, natural and artificial flavourings. Analyticals constituents: sodium 25%, Activated charcoal 0.3%, calcium 35%, phosphorus 0.01%. Instructions for use: make sure that your pet has permanent access to the mineral bell and to fresh water.