Powerful NRR 33 Noise Reduction, Comfortable Fit
Economical, lightweight, single-use foam plugs deliver a powerful noise reduction rating (NRR) of 33. Compress a plug between the finger and thumb for easy insertion into the ear canal, and the bell-shaped foam expands to fit your individual ear size for a comfortable fit. Red, white and blue colors stand out at the range.
Big Book Catalog, Issue:65, Page:353
Big Book Catalog, Issue:66, Page:361
Big Book Catalog, Issue:67, Page:369
Big Book Catalog, Issue:68, Page:390
Big Book Catalog, Issue:69, Page:360
Sinclair, Issue:4A, Page:230
Sinclair, Issue:4B, Page:231
Sinclair, Issue:5A, Page:224
Sinclair, Issue:5B, Page:224
SPECS: Molded foam, red, white and blue. Approximately 1" (2.5cm) long, 7⁄16" (1.1cm) diameter. Sold in 20-pak.