Anti Static Round Bottom 12" LP Record Inner Master Sleeves Virgin HDPE by TME 50 Pack for Up To 200 Gram Heavyweight Vinyl Anti Static HDPE High Tensile Strength Virgin High Density Polyethelene Read both sides of the LP without Removing it from the Sleeve Round Bottom Design Minimizes Dog Earred Corners and Easier Insertion into Jacket 2 Mil Thickness- Imported- Inspected and Packaged in USA Our Virgin Inert Polymer Will Not React with or Scratch Your LP Like Low Density Poly Materials