I am looking for a reliable and good quality stability ball. I had two and I don't remember who they were made by but they were worthless. The air never stayed in. I prefer to work out at home and I like a variety or I get extremely bored so I am trying to add to what I have. Any suggestions/leads on a great stability ball would truly be appreciated. Thanks.

Mine is Danskin (i think that is how you spell it) and i have had it a year and havent had to add air yet (knock on wood).

Thanks I will look into it.