These archival quality crystal clear sleeves are a great choice for protecting your precious record collection. The special adhesive used on this sleeve allows you to open & reseal the record many times, keeping your vinyl safe and dust-free. Biaxially Oriented Polypropylene (BOPP) means a much better sleeve clarity than the traditional cast polypropylene or polyethylene. The resealable adhesive strip is located on the body of the bag, allowing for easy record insertion & removal.