Stain reduction: Active nubs promote safe tooth cleaning, improve oral hygiene through deep cleaning, and help prevent visible staining during play. Treat-dispensing chew toy: Integrated hollow cavity for treats provides mental stimulation and helps minimize chewing behavior. Interactive play: Combines a treat dispenser with a tooth-cleaning function for active dogs; effectively combats boredom and offers multi-functional entertainment through an interactive puzzle over hours. Entertainment and enrichment: Supports dogs' enrichment needs through mental development and boredom prevention. Natural instincts are engaged through varied interactive play to keep dogs engaged and delighted. Use scenarios: - Treat time: fill the hollow cavity with treats to extend mental engagement and reward-based play. - Enrichment sessions: use as a puzzle toy to channel chewing into constructive activity and reduce destructive behaviors. - Daily play with dental care: the tooth-cleaning nubs promote oral hygiene while the dog works on the puzzle and treats.