They should come glued in a petri dish depending on how many they ordered. I ordered 500 and found them very easy to grow. I kept them in a spot where the temps were above 80 and a week later little silk worms were everywhere. About a day after they hatched I added my prepared chow. I did not clean the petri dish and just added new food when needed. After about 10 days I moved them to a larger grow out container and all is good. Going to put a bunch in another container to pupate and harvest some eggs. Good luck, make sure you keep your temps up and you will be fine.