StoreSMART - 4 Coin/Slide Holder - Non-Adhesive - Crystal Clear 8 Gauge Vinyl - 25 Pack - PE1456-25 Made of 8 gauge crystal clear vinyl front & back for long-term storage. Holds 4 Coins or Slides. Overall size: 2 1/2" x 8 7/8" Works with all mounts, glass too. Perfect for promotions, mailing, and storing.