These Intercept Shield Slab Covers for certified coins offer superb protection for your certified coins. They are the same great slab covers sold in the Double Protection boxes and are now available separately and sold in packs of five. Each cover is lined with Intercept Shield, a breakthrough technology protecting your valuable coins from environmental damage. Intercept Shield acts as a neutralizing agent cleansing the air around the coin protecting it from the harmful effects of corrosion. Each cover will protect one PCGS, NGC, ICG or ANACS (new holder) graded coin.