3M 328-1000 Ear Flexible Fit Ha Uncorded Ear Plugs Box 100

Firm, yet flexible stem for one or two hand insertion.
Single Number Rating (SNR) 35 dB (two-hand insertion) and 30 dB (one-hand insertion).
Soft foam stem for secure grip.
No roll down of soft foam tip helps keep ear tip clean.
Good for workers with gloved or dirty hands.
Good for workers with only one free hand available for inserting earplugs.
Foam encapsulated construction.
Compatible with the 3M E-A-Rfit Dual-Ear Validation System

Standards
EN 352-2:2002 (SNR 35dB)