3M PUSH-INS Corded 100 PR/PK Package. 3M E-A-R Push-Ins Corded Earplugs is part of a wide selection of 3M Ear plug gages or accessories. Combining excellent quality with an affordable price the 3M E-A-R Push-Ins Corded Earplugs can meet your scientific research needs while still offering a good value for a budget conscious end user. If you have any questions about any of our Ear plug gages or accessories please do not hesitate to contact our customer service for further guidance. Specifications for 3M E-A-R Push-Ins Corded Earplugs: Manufacturer: 3M Quantity: 100 Available quantity options: Package 3M PUSH-INS Corded 100 PR/PK 318-1001 Package