These babies work just as well at the gun range as they do when the in-laws are in town. Our genuine 9mm casing ear plugs look great and offer a noise reduction rate of 27, perfect for shooting. We'll also throw in a handy carrying case that attaches easily to your keyring. Casings measure 9mm x 19mm, plugs measure .5", storage case measures 1.75" x 1.25" x .75" Lucky Shot USA, High Caliber. Handcrafted. All items are made from genuine fired shell casings and resemble live ammunition. We do not recommend bringing this item to airports or other places where live ammunition is not permitted. This listing and its products, descriptions, images and trade names are the intellectual property of 2 Monkey Trading, LLC and may not be utilized (by others) individually or as a listing unless authorized in writing from 2 Monkey Trading, LLC. All Rights Reserved.