Has any one heard of snake sausage

I just can't see this happening I love the line

"developed specifically for meat-eating reptiles, and is a preferred diet for those who dislike feeding their animals either live or frozen mice or rats"

I just don't see any ball python eating this stuff. I see a picture of a gaboon viper with on but I still can't see it happening. I also heard its cost is higher then feeding a rodent to your snake like it should eat.