Our product recommendations are selected by editors, tested first-hand, or expert-approved. We may earn a commission through links on our site.Of the many muscles we train to feel, look, and perform better, those associated with grip strength might be the most slept on. For one, directly training your grip can lead to juicy forearms, which will make you the envy of men the world over. But grip training also boosts your capacity for other workouts, too—think weightlifting, rock climbing, and bodyweight exercises—which in turn grants more strength and muscle gains. Plus, grip strength has recently been identified as a fairly robust biomarker for healthful aging; AKA having a powerful grip is a sign of a more youthful body primed for longevity (1, 2, 3).So, how does one join the grip strength elite? Luckily, it’s both cheap and easy: get a grip strengthener (sometimes called a gripper). Here’s everything you need to know about grip strengtheners—if they work, how they work, how to use the…