These are 1/4"-3/4"long. We ship silkworms with 2-3 days worth of food. If you plan on growing out your silkworms past 2 days, you will need to order more food. If you receive dead silkworms you must contact us within 24 hours upon receiving your order
All orders ship on Mondays. This helps prevent packages being delayed over the weekend. If you need an overnight shipping order shipped immediately please contact us.