![Gnawt-a-Rock Toy](http://thebearmountain.com/cdn/shop/files/1534-1202654-7044085-image-1725649_640x640.jpg?v=1721299728)
It looks like a piece of Obsidian from our nearby lava flows, but it's Gnawt-a-Rock! This durable throw toy is inspired by natural volcanic glass formed by rapidly cooling lava from Pacific Northwest volcanoes. Unlike Obsidian, the Gnawt-a-Rock is made with natural latex rubber, with a faceted, gum-massaging surface. Its irregular shape creates an erratic bounce, and it has a treat-dispensing design for interactive play and reward.