I was hesitant to buy these at first, but when I couldn't source rats in my town for the life of me, I decided to bite the bullet and give these a try. Let me just say the quality is astounding! They're the perfect size for my ball python and he took them immediately. Before during feeding times with local store-bought mice, he'd be pretty lethargic and disinterested, but now he's so excited when he sees me bringing in his rat! He's grown so much on these, too, is honestly shocking. So glad I gave these a try. Another thing I like about these is the packaging; I used to deal with freezer burn a lot with the store-bought mice, but I haven't once encountered that problem with these rats. They're a couple dollars pricier than my local pet store, but I'd say it's 100% worth it for the size, quality, and availability.