1. Isokinetics Inc. Brand Exercise Ball - Anti-Burst - 65cm/26" - Blue (Click Link to Check Price on Amazon)
Editor's Rating : 8.9 out of 10
PT exercise balls are Physical Therapist quality for clinic or home use. Mix and match from our wide selection of sizes and colorsWeight-tested to support 500 lbs. of static weight. Made of special, durable latex free burst resistant material. Deflates slowly if punctured

2. Jolly Pets 14-Inch Push-n-Play, Red (Click Link to Check Price on Amazon)
Editor's Rating : 9.1 out of 10
Designed for constant motionPerfect for dogs who love pushing and herding

3. Virtually Indestructible Best Ball for Dogs, 10-inch (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
The one toy your pet cannot destroy! Colors will varyBall made of Hard, non-toxic, thick polyethylene plastic.

4. Get the Ball Rolling: A Step by Step Guide to Training for Treibball (Dogwise Training Manual) (Click Link to Check Price on Amazon)
Editor's Rating : 9.6 out of 10
Used Book in Good Condition

5. Varsity Ball -- The 110% Guaranteed Indestructible Herding Ball Designed For Human-Free Canine Exercise (Basketball Design) (Click Link to Check Price on Amazon)
Editor's Rating : 8.8 out of 10
Varsity Ball