Gaiam SPRI 12lb Medicine Ball Multi 02-71657 - Best Buy
SPRI Elite Xercise Ball at SwimOutlet.com
Spri Hot/Cold Therapy Balls | The Fitness Outlet
Spri Medicine Ball Rack – Body Basics
Amazon.com: SPRI Dead Weight Slam Ball - Durable Sand-Filled No-Bounce Heavy Duty Ball for Tossing, Slamming, Core Strength Training, Endurance, and General Fitness - Easy to Read Weight Label - 15 lb :
SPRI Soft Mini Xerball - 6lb at EverydayYoga.com
55cm SPRI Stability Ball | SCW Fitness Education Store