CRUSHED SEA SHELLS COMPO Bio Barrier Anti-Snail consists of sea shells that have been shattered into sharp splinters. This product forms a physical barrier against snails: by spreading the product around the areas to be protected (vegetable garden, ornamental plants), snails are prevented from attacking the plants. The shells are weather resistant (can be used in both wet and dry conditions) and protect the plants for a long period. Thanks to their mineral nature, the crushed sea shells decompose and are absorbed into the soil life without any problem. Physical barrier against slag Rainproof Long-term protection