This gizmo soothes aches--and strengthens your core.

All workouts and no play make you a sore girl.

But you can tackle two body bummers in one fell swoop with The Grid ($39.99), an update of the foam roller. Makers claim that squares along the surface get deeper into tissue than a traditional roller, mimicking a massage. Just roll it over the body part that aches; choose from three grid patterns to adjust the intensity. One section is designed to feel like fingertips, another feels like a firm forearm and one feels like your fingers and thumb. At just 13" in length, it can be stashed in a suitcase or gym bag for an anytime rubdown.

When you're ready to get back on the workout wagon, use The Grid to make basic moves like squats or sit-ups more challenging--and see results faster.

Feeling kinky? Click here for videos of massage moves and sample workouts.

Buy it here.

Put a grid on it.

Know someone in knead of a massage? Send her this news!