Check the listing for details. Inner Sleeves Mini LP Square One Side Clear/One Side White SelectSleeves Japan. Color: Clear/White, Condition: Brand New. Listed at 19.99 USD. Hundred (100) pieces of protective, inner sleeves, for disc only insertion. These are square, with one side clear and one side white. The white material is not paper, but more cloth like. Many Japanese mini LP CDs (cardboard jackets), come in the same thing. This inner sleeve will fit into the mini LP CD cardboard cover. Some people use them to store their CDs, without the cumbersome jewel case and artwork. 125mm x 125mm We get these directly from Japan.....no middleman. As far as we can tell, these are only made in JPN. Accept no substitutes....say "SELECT". micron (metric) to mil (English inches) 40 micron = 1.6 mil 50 micron = 2.0 mil 60 micron = 2.4 mil 80 micron = 3.1 mil 150 micron = 6.0 mil