3M P1300 E-A-R Skull Screws Ear Plugs, Uncorded Cone, 32 dB NRR, Foam, Reusable, Gray, M Size, PK 120 G3007313 (1) 5/16 in Standard 8-Point

(1) 5/16 in Standard 8-Point

Calendar Display 12/24-hr Clock

Watertight Includes Automatic Pressure Equalization Valve

Drill pilot holes slightly larger than the size of the stud

T1/4 in Rabbeting

3M P1300 E-A-R Skull Screws Ear Plugs, Uncorded Cone, 32 dB NRR, Foam, Reusable, Gray, M Size, PK 120 G3007313 (1) 5/16 in Standard 8-PointEar Plugs, Noise Reduction Rating 32 dB, Earplug Shape Cone, Insertion Method Push In, Reusability Reusable, Cord Options Uncorded, Earplug Size M, Earplug Material Foam, Earplug Packaging Bulk Box, Earplug Pair Pack Type Plastic Bag, Series E A R Skull Screws, Standards ANSI ASA S12. 71 2018, Pairs per Package 120, Earplug Color Gray, Metal Detectable No, Package Quantity 120. Noise Reduction Rating 32 dB Earplug Color Gray Reusability Reusable Cord