The BB 55e Tortoise Block by Zoo Med is the healthy way to keep your tortoise beak trimmed. Made with spineless cactus, alfalfa, and other vegetables, the block provides a excellent source of calcium. The nutritious mix also allows your tortoise to have more variety in their diet. This is a long lasting, natural way to stop the overgrowth of your tortoise's beak. Each block weighs 9g.