The Mealworm Suet Pellets are a blend of suet, sugars & dried mealworms to provide wild birds with a high energy food source with calcium to help maintain healthy bones & feathers. Please note: the bag inside the box is a liner only, & is intended to protect the box from the fat content of the pellets & prevent it weakening & breaking in transit, therefore, it is not intended as a carrying bag & is not routinely sealed as a result.