Super Pet Big Branch Bites www.petco.com - $2.49 Product Description: This satisfying chew treat is made from all-natural, bark covered fruitwood that your small animal will find absolutely irresistible. And, chewing helps prevent overgrown incisors. Chemical free branches are harvested from a sustainable wood source. Branch Bites are made from gooseberry fruitwood trees. The branches are pruned each year to increase the production of the berry, which is used to make jam, jelly, and preserves. The routine pruning process insures the health of the plant, an improved fruit crop, plus this creates a regular supply of branches that rodents and rabbits instinctively need and enjoy to chew on. RattyRat's Review: Our rats chewed on these branches a little bit, however over all they seemed unimpressed with them.