This feels great ! Not too long or short to where it feels uncomfortable. For me the 16 is perfect ! The only issue I have is that the small jewel sometimes brushes against my teeth and I feel like it scratches them, but as long as I don't do that it is fine. A regular ball without the jewel has no scraping, but since this one does have a jewel, it sometimes scrapes my teeth. So I would be careful with that. Overall though feels good !