Left/RIGHT Ear Muffs, from MSA, come in three models of protection: high, medium and low. Selection is based on the noise level of the environment such as heavy manufacturing (high), light construction (medium), or typical yard work (low). The wearer is able to hear important sounds and communications while protecting their hearing. Ear muffs are comfortable as well, so they’re a pleasure to wear. These blue ear muffs are cap mount style and medium level of protection. You get what you see in photo. Case with left medium right high left low and blue helmet mount. MSA Safety 10108385 Left/Right Dual Pro Electronic Headband. Comes in a case.