These are bags of real rib bones and vertebrae from a Fer-De-Lance (Bothrops asper) that was born in captivity and died of natural causes in a Canadian zoo.
The Fer-De-Lance is a highly venomous pit viper, found from the southern areas of Mexico to the northern reaches of South America.
These would make for great display items or craft/jewelry supplies! For a sense of scale, the visible area of this bag measures ~2"x2".
We can ship these specimens worldwide.