Each cup contains AT LEAST 12 small/medium hornworms with enough food to get them to a HUGE size if desired. Keep them 55-65 degrees if you want to slow their growth, or in a warm spot if you want them to grow quickly. Keep cup upside down with a pencil propped under it to allow air flow, and remove droppings daily. Highly nutritious, and relished by most insect eating reptiles! Horn is soft and will NOT harm your reptile.