The new line of LIGHTHOUSE storage boxes provide active protection against tarnishing thanks to patented INTERCEPT TECHNOLOGY?. All glossy white boxes are manufactured of sturdy inert materials and are archival quality. Each box is equipped with INTERCEPT TECHNOLOGY lining which purifies the atmosphere inside the box. They are suitable for the storage and preservation of coins made of copper, bronze, silver, and gold. The Intercept box IBSL50 holds 50 slabs (incl. PCGS, NGC, ANACS, EVERSLAB, QUICKSLAB, and many others). It comes with "stoppers" to prevent contents from falling when the box is not completely filled. Lighthouse#: SL50. Size: 12 5/8 x 6 x 3 7/8 Color: White.