3M E-A-R Skull Screws Earplugs P1301, Corded, 480 Pair/Case | 92952

92952 EAR SKULL SCREWS CORDED EARPLUG For industrial/occupational use only. Not for consumer sale or use. Tough hearing protection with a no roll-down design for quick and easy fitting Soft foam tips feature one-of-a-kind Skull Screws “threads” designed to create a stay-put seal in the ear canal NRR 30 Advanced foam formulation provides excellent in-ear comfort Priced per pair, 480 pair per package IMPORTANT: All 3M products must be used in accordance with OSHA regulations, and the user instructions, warnings and limitations accompanying each product.