KONG Goodiez dispenses treats from between two durable layers from a gap that can be adjusted to 2 difficulty levels to satisfy dogs foraging instincts. This mentally stimulating food puzzle invites dogs to extract kibble by rolling and bouncing or by prying the sides apart. Fill top grooves with KONG Easy Treat to entice play. Twists open for easy filling and cleaning. Holds 1 cup kibblesgreat for weight maintenance.