Resealable, Archival Quality, Acid-Free, Anti-Static Crystal Clear Biaxially-Oriented Polypropylene - Perfect Protection For Your Collection! ^^ 12-3/4" Width x 12-3/8" Height + 1-1/2" Flap - The Perfect Size! ^^ Fits Single, Double and Gatefold Records ^^ Made by Long Term Record Supply Professionals - Sleeve Sellers for 40+ Years ^^ 100 Individual Sleeves