3M, Mmm3101008, Safety, Maintenance Supplies, Ear Plugs,Yellow / Red Patented Superfitcopy; Fitting Rings Helps You Insert The Plug To The Proper Depth. Proven Cylindrical Shape Ensures Reliable, High-Grade Protection. Slow-Recovery Pvc Gradually Expands To Create A Snug Sound Barrier Within Your Ear. Top-Quality, Moisture-Resistant, Dermatologically Safe Foam Minimizes The Potential For Irritation. Features: Superfitcopy; Fitting Rings - Proven Cylindrical Shape - Slow-Recovery Design - Moisture Resistant, Dermatologically Safe Foam -
My 3M MMM3101008 E A R Classic Superfit Earplugs, Cordless, 33 NRR, Yellow Red, 200 came in amazingly nice packaging, but this is last good thing about it. I am disappointed by 3M, and I won't be buying anything from them.