www.dogcatsupply.com

This plastic version of Nina Ottosson's original wooden Dog Tornado is a puzzle consisting of four rotating bone shaped layers.  Three of these layers have recesses for concealing treats.  Your dog is required to rotate the bones with his paw or nose in order to reveal and retrieve his reward. This version also includes 1 plastic bone shell which can be used to increase the difficulty of the toy by adding an initial impediment. The plastic construction is light-weight and dishwasher safe.  Includes training guide.