Either this is a new category item for Chewy or I just never noticed it, but this product (in my case frozen small rats) arrived fast and with the dry ice still intact and keeping everything very frozen. This is critical as snakes won't go near food that is even slightly funky from having thawed and been refrozen. My python came right at this offering without hesitation which tells me the rats are fresh and great. This will be my new source as long as it stays like this. I might add that the price was a little high, but for me it is worth it to have a quality food the snake will take every time.