This low-cost training tool can transform your core workouts—here's how to use them

Woman exercising with sliders, small green discs, on a polished wooden floor .

Whenever I get a new personal training client I can pretty much guarantee that one of their fitness goals will be to improve their core strength, so I introduce them to an affordable piece of equipment that can transform their core workouts—sliders.

Are you familiar with these little discs? You can get a pair like these ones from Amazon for under $5 and they are way more versatile than you might think.