Silvermoor Alfa-Grit Block. Pure dried, high protein alfalfa and insoluble grit briquettes created to improve poultry welfare and digestive efficiency. Perfect for hobby farmers and small-holders. Made from 70% alfalfa and 30% insoluble flint grit. Grit is an essential part of a hen's diet. The Gizzard, the grinding mill of the gut, needs this insoluble grit in order to break down and digest the the hard husks of grains and seeds that your hen might eat. Silvermoor Alfa-Grit-Blocks are pure dried, high protein alfalfa and insoluble grit briquettes created to improve poultry welfare and digestion efficiency. The 16x11x7cm Alfa-Grit-Blocks have been created to enrich hen’s environment and enhance hen welfare by encouraging natural activity, relieving stress which decreases the risk of injurious pecking.