Dogs are very playful and intelligent animals. Channel their energy and curiosity into something positive with trixie"s snack roll for dogs. It is designed for the beginning canine gamer. Simply unscrew the cover and fill the tube with your dog"s favorite small treats. They tumble out as your canine nudges and pushes this toy across the floor. Three internal rods can be added or removed to regulate how quickly the treats are released. We have also included an instructional booklet with tips and tricks for challenging and training dogs of all ages through play. One year warranty. Measurements 2 by 2 by 6-Inch. Weight 1-pound.