3M Tri-Flange Earplugs feature a triple flange design to help fit a variety of ear canal shapes and sizes. The ear tips are made of a flexible thermoplastic material that can be washed and reused to extend the product life.Designed with plastic paddle grips to insert and remove the ear tips, these ear tips stay clean longer even when hands are dirty or wearing gloves. One size fits most. Available with cord only. This product is EARfit testable to help validate the level of protection the individual user is getting.