Details DOSH SIRIM Approved Stem helps users insert earplug into their ear canals No need to touch the ear tips during earplug insertion, helping to keep ear tips clean longer Soft polymer is washable and reusable Reduces noise levels up to 29 dB (SNR) Compatible with the 3M™ E-A-Rfit™ Validation System 3M™ E-A-R™ UltraFit™ Earplugs are made with a triple-flange design to contour to the different shapes and sizes of ear canals to help create a comfortable noise-blocking seal. These earplugs are made of a pliable, soft polymer that can be washed so that the earplugs can be reused, cutting down costs and extending the product life. Easy to use - hold the stems to insert the triple flange ear tips into the ear canals. One size designed to fit most. Options include with or without cord to suit user preference. Cord material options include vinyl or cloth. EARfit testable to help validate the level of protection the individual user is getting.