9mm Bullet Ear Plugs with Carry Case 1.These ear plugs have a noise reduction rate of 27, which makes them great for shooting 2.Geunine once-fired 9mm shell casings, manufacturer may vary from what is pictured. 3.FDA approved silicon plugs for a comfortable fit 4.Patent Pending - each set includes plastic Lucky Shot USA carry case 5.Great for Fathers Day, Groomsmen Gifts, Birthdays, Hunting Gifts, and Stocking Stuffers!