These polylined inner sleeves provide superior protection for your valuable record collection. The hole provides visibility to the record label, and the plastic lining keeps dust from getting in through the hole! These archival quality sleeves are both acid-free, and anti-static. The premium heavyweight 27# paper makes them stand up nicely inside a record jacket, and feature a 1/4" lip for easier record insertion. The Archival Quality High Density Polyethylene lining prevents paper scratches. 12-1/8" width x 12" height - the perfect fit!