Roller is the second piece of the dog chew toy collection designed for both home-along and interactive play. The modified sphericon form allows the toy to roll in a visually interesting way with a simple nudge. An interchangeable scented or shiny roller ball is inserted in the track of the toy. As the pet tries sniff and find the ball sitting at the bottom of the toy, the toy will meander about, attracting attention and encouraging a chase for the pet playing. Its two thicken wings also leads itself to a great chew!