(25) 12" Paper & Plastic Poly-Lined Record Inner Sleeves for LP Vinyl Record Albums 12-1/8" x 12" with a 1/4" lip (308.12mm x 304.8mm with a 6.35mm lip) 20# paper on the outside, high density polyethylene plastic on the inside Laminated Instead of Glued Plastic Protected Window For Easy Viewing of Label Slight Tack (Stickiness) to Outside Window On First Use, Will Disappear After First Use