Oprah's Favorite Juicer is the "Fluicer" by Dreamfarm

Whether you're using it for a dish you saw on social media or your kiddo's lemonade stand, this citrus juicer will simplify things.  Its clever design allows you to use both hands, so you utilize muscles in your arms over your hands.
Plus, since it folds flat, it is easy to store and take on the go!