CAP Fitness Stability Ball, 65cm for $4.99 (reg $13.99)! 3 days agoAdd Comment This post may contain affiliate links. For more information please see our Disclosure Policy. No need to wait until the new year to start your fitness goal! This CAP Fitness Stability Ball, 65cm is on sale now for $4.99 (reg $13.99)! Choose Teal, Silver, or Purple! Score free 2-day shipping on most orders of $35 or more! You can also select free store pickup on many items, which might even be available the same day. Shipping starts at $5.99 for orders under $35. Share this with your friends!