Manufactured and sold by Sleeve City. Our most popular audiophile inner record sleeve has been made even better and we guarantee you'll love them! Manufactured from 2.0 mil anti-static high-density polyethylene, our Diskeeper 2.0 is not only affordable but offers our best combination of quality and cost-effective way to protect your LPs. Each sleeve is precision die-cut at 12-1/16 x 12-1/16 inches and tested with 200 gram audiophile vinyl as well as older, thinner LPs. Manufactured by an audio accessory company in Taiwan exclusively for Sleeve City, each sleeve is perfectly consistent in size and quality.