3M™ Skull Screws™ Push-to-Fit uncorded foam earplugs sport the tough look of threaded metal, but feel of soft foam, while offering Push-to-Fit convenience and noise attenuation with attitude. Effective hearing protection and compliance with a clean, easy twist. Grab the attention of your young workers with these radically designed Push-to-Fit corded foam earplugs and help boost hearing protection and compliance at the same time.