Exercise balls — also known as stability balls, balance balls, and Swiss balls — are fantastic tools for general strength training and working your core. You can incorporate one into your fitness ...

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Package Contents: The package contains a hand air pump, 10 pieces of ball plugs, and 2 pieces of plug pullers. Product Material: These kits are made of plastic, which is thicker and more reliable.

Now, before you go grabbing that pump, you’re going to want to make sure you have the right ball size on hand. To do that, all you need to know is your height. If you’re 5’5” or shorter, stick to a 55 ...