I was gonna get a gym ball core core work then came across this addition.

Normal ball is about 20 bucks, is this contraption worth 80 dollars?

What useful exercises could I accomplish.

All I could think of is lying upon the ball face up and wiggling side to side in various angulations and this shall target my core but I don't know how useful it will be for my arms.

http://www.oo.com.au/Horizon_VersaBALL_FX_...t_P7346C110.cfm for some pics

and check the "full body training" tab of http://versaball.com.au/

Just get a regular old Swiss ball. No need for that thing.

Swiss balls are mostly good for core training and re/pre-hab. They have their place as a tool in training, but there's nothing magical about them.

No.

That looks like a cheating version of a swiss ball. The whole point is to improve your balance, not lean a ball as you hold your weight up with your arms or legs.

Yeh I was heading to the not buy side, thanks for the input.

Now to the more important question..what color ball?

Red masks the color of hemmeroids.

As soon as I saw the 'seat' in which the ball is placed, it got an automatic "no". WTF? Yeah, let's work our core by having our butt and legs supported. Engaging the entire posterior chain (glutes, hams, etc.) is important to core work, IMO, even if 'concentrating' on the anterior side (abs).

Isn't another phrase for the "Swiss/exercise" ball "stability" ball?

<I love 'single' and "double" quotations>

My Chiro recommended using a Swiss Ball for a chair. All the chairs in my office blow, but he said I should try a ball. Works the core, and I would have to work up to using it all day, as 15 minute stretches at the beginning are kinda rough. Sounds cool, and I wouldn't mind being that guy