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.

Part of the Pacific Gnaw-west toy collection inspired by Ruffwear’s home of Bend, Oregon, and its natural surroundings.

Diameter: 4.5 (in), 11.5 (cm), Holds up to 2 cups of kibble.

Our toys are designed to be interactive – it's just more fun that way. While our toys suit a range of play styles, dogs can be crafty and determined chewers, so supervised play is recommended. If any part of the toy becomes loose or detached, take the toy away and discard.

KIBBLE DISPENSER
Internal chamber dispenses up to 2 cups of kibble or small training treats. 

DURABLE RUBBER
Made from natural latex rubber, a renewable resource 

CHEW-RESISTANT
Durable, chew-resistant. 

• Erratic bounce for engaging fetch 
• Size suitable for large-mouthed dogs 
• Internal chamber dispenses kibble or small treats