Twist-In Foam Earplugs. Like a fingerprint, no two ear canals are alike. Glide’s unique multi-curved stem rotates for a custom fit inside each ear canal. With its unique curved stem design, you simply push & twist for Glide to angle its way to find your fit. Features: Unique multi-curved stem rotates for a custom fit; Large handle on curved stem for easy insertion & removal; Cord can be attached at any desired length; Look for the bright green color as a symbol of Moldex quality; 100% PVC-Free®, like all Moldex products & packaging – for a greener alternative; Made in U.S.A.