Special Features: New ProductQuick DryingLightweight

Mobile Message




Weight: 4.0 oz
Item #: RWNR
  • Erratic Bounce for engaging fetch
  • Faceted surface for gum-massaging
  • size suitable for large-mouth dogs
  • Made from natural rubber. a sustainable resource
  • Top rack dishwasher safe, dish soap, air dry.

Metolius Blue

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.

Gnawt-a-rock Reviews

Give 10%, Get 10%

Refer a friend to RailRiders, and they'll receive a 10% coupon for their first order of $75 or more. When they purchase, you'll receive 10% off your next order, too!*