Outer covers for LP 12''. Biggest Size! Pack contains 100 pcs. Best protection for your music collection from dust, moisture and fingerprints. - extra visibility - 100% transparent. Made from very thin, but strong polyprophylene film. - Biggest size! Perfect fit for special editions/ gatefolds/ double and triple albums/ vinyls released after 1990. But too wide for standard LPs and double LPs (released 1950-1990). Standard size availabe on my other listing! - the best value for money - stored and dispatched flat, no creases - polypropylene covers are much better than polyethylene. Are stiffer, stronger, smoother and slimmer than every polyethylene/ polythene covers. - Need more quantity? (even 10000 pcs.?) Ask for discount. Dimensions: 13⅛ x 12⅘ inch = (330 mm x 325 mm x 30 μm) x thin film The covers are made from a very stable, thin and transparent polypropylene film dedicated to professional usage.