The KONG Jump 'N Jack has a fun and innovative style that is perfect for both chewing sessions and fetching games. The proprietary Denta-Ridges minimize plaque and food debris while supplying teeth and gums with gentle abrasive cleaning and conditioning.
Supervised use only. Remove all packaging. Discontinue use if damaged. Power Chewers may need to size up one or two sizes and/or use the KONG Extreme line.
My dog loves playing with this as its chewy and it bounces when he throw it on the floor so he could entertain himself. LOL. He's back to chewing his second kong chews. Anyway the rubber doesn't tear easily, but when it does, has to be replaced as when my dog accidentally ingested some small parts, the rubber do stay in the stomach for a long time before it get pooped out (it took weeks after we discarded the worn off toy, and it came out as a full broken piece).
Both my dogs love this toy very much. I think the grooves provided a satisfying sensation for them as they chew. However, bits of rubber came off easily by my younger pup at 4 mth. Puppy teeth might b too sharp for it