Amazon.com: JX FITNESS 58cm Balance Half Ball Trainer, Stability Exercise Yoga Half Ball with Resistance Bands & Pump - Improve Core and Ab Strength with Full Body Home Gym Workouts Or Fitness,Amazon.com: JX FITNESS 58cm Balance Half Ball Trainer, Stability Exercise Yoga Half Ball with Resistance Bands & Pump - Improve Core and Ab Strength with Full Body Home Gym Workouts Or Fitness,Pro Iron | Bosu Ball (PRO-YJ04) - Sports & Games,Innova Champion Metal Flake Teebird3,Sold the 14lb balls after moving up in weight with a 16lb vintage Columbia 300 Purple Quake from a friend, it cracked and I gave myself 2 more Hammers for a replacement. #