Trideer Pilates Ball, Barre Ball, Mini Exercise Ball, 9 Inch Small Bender Ball, Pilates, Yoga, Core Training Physical Therapy, Improves Balance, Core Strength & Posture (Home & Gym & Office)

I just inflated the ball and was surprised about the size. We measured it and it is not 9 inch but a little more than 11 inch. The ball is too big for my sport bag.

The ball itself is fine but the plugs aren't the best quality. The "pump" they provide isn't even a pump, it's just two straws. I used a different exercise ball pump to inflate this one.

This ball does not use the normal inflation valves used by balls where inflation requires a needle attachment to a pump. INSTEAD it use a straw and some plug. This means that you have to remove the straw in order to insert the plug which results in significant under inflation. This is a piece of crap. And filed a return within 5 minutes of opening.

Ball comes with 2 thin tubes to blow it up. Good thing it came with 2 because the first one slipped into the ball. Tube is much narrower than the hole allowing air to come back out when blowing it up. Much more air comes out when removing the tube and placing the stopper into the hole. Should have a soccer ball inflater.

I purchased two. despite fully inflating them, one is significantly smaller than the other. I also selected a teal ball and a black ball- both are obviously black. Inflating was very difficult- you have to use a straw and blow into it. I do not recommend purchasing.