It may look like a piece of obsidian rock, but it’s Gnawt-a-Rock - a durable throw toy is inspired by natural volcanic glass formed by rapidly cooling lava from Pacific Northwest volcanoes. The Gnawt-a-Rock is made with natural latex rubber, a faceted surface, and an irregular shape. It all comes together to keep your pup guessing, whether chasing after its erratic bounce or nuzzling and nosing it around for interactive treat-dispensing to stimulate their mind.

• Internal chamber dispenses kibble or small treats
• Made from natural latex rubber
• Erratic bounce for engaging fetch
• Durable, chew-resistant
• Size suitable for large-mouthed dogs
• 4.5 in (11.5 cm) Diameter