Keep your vinyl LP jackets free of dust, debris, dirt, moisture, and potential scuffs and dents with Mobile Fidelity Sound Lab UltraClear Record Outer Sleeves. "Clearly" superior, these 4-mil-thick sleeves are made from polypropylene, which is more transparent than polyethylene and lets you more easily see album graphics. Plus, they're sized just large enough to provide a close fit while allowing enough room to accommodate gatefold jackets. A necessity for any record lover and a no-brainer investment. Each pack contains 50 outer sleeves.