this is for 100 pre packed sleeves for the steelbox dvd.s comes with a self sealing strip.and they are 40 microns thick the best you can get .made in the uk.they will also fit the standard 14.mil dvd. cases. never out of stock free postage ships same day . Perfect Fit for Sealed and Unsealed Blu-ray/DVD Steelbooks, with or without J cards. These also fit Iron Packs, Metal Paks, Future Paks, Viva Metal Cases, PS3 Steelbooks, PS4 Steelbooks, Xbox360 Steelbooks, Xbox One Cases, Standard Blu-ray and DVD Cases, Blu-ray and DVD Cases with Cardboard Slipcovers.