Sliders are exactly what they sound like—discs you put under your hands or feet to glide across the floor during workouts.

They turn familiar moves like lunges, planks, and mountain climbers into significantly harder versions that force your core and stabilizer muscles to work overtime.

They're small enough to toss in a bag, brutal enough to make you question your life choices mid-exercise.

Perfect for home workouts, quick hotel room core sessions, or just proving to yourself that you still have a core somewhere under there.