The Ultimate Challenger Bundle | Level 4Calling all doggos and their hoomans! Do you want to give your furry friend the ultimate challenge? This set of our Challenge Level 4 snuffle mats is the perfect choice for a tiring and extensive sniffing adventure that will keep your pooch entertained for hours. Plus, to make it even more exciting, don't forget to hide treats in the fleece rolls of the Challenger Bone! It's easy, fun, and sure to bring out the tail wags and woofs in your pup! FAQs 1.