Rainbow mealworms used to be a good company to deal with up until about a year ago when it really started to go down hill. Their shipping rates have become outrageous for feeders. The last order I got from them was for pinheads and small crickets. All the pinheads came in dead and over half of the smalls. I called, they said they would re-ship. They did - but only sent the pinheads, of which at least half were dead. I have since found a much better source for feeders (check other reviews). Also, Rainbow doesn't pack their crickets with any moisture source and the whole deal of stuffing them into a small box with nothing between you and the crickets IS a HUGE hassle - my cats used to LOVE it when Rainbows cricket order arrived because they knew they would be chasing crickets for a few days!