The 3M™ E-A-R™ Push-Ins™ Earplugs have firm fitting stems to help with easier fitting — just hold the fitting stems to push the soft foam ear tips into the ear canals. No need to touch the ear tips, helping to keep the ear tips clean longer even if hands are dirty. One size fit most.Fitting stems allow users to insert and remove ear tips more easily and help with deeper insertion of the ear tips. The smooth surface of EARform™ foam may help the ear tips slide into the ear canal more easily. No need to roll down ear tip into a cylinder before insertion. Available with or without cord to suit user preference. This product is EARfit testable to help validate the level of protection the individual user is getting.