I was pretty confused for a sec, because 1 fuzzy definitely looks too big to feed a newly hatched snake, but when I looked around, I realized I must be feeding my snake a fuzzy rat. There's no markings on the box to tell whether it's a mouse or a rat, but a quick google search for pictures turned up what looks like exactly what I've been feeding him.

1 fuzzy rat is ok, right? It's what the pet store told me to buy, so...