Made of acid free 55pt blue gray and white board and stayed with enameled metal strips. Both the grey outer liner and white inner liner are lignin free and conform to the ANSI IT9.2 Standards, sulpher free, and buffered with calcium carbonate to a pH of 8.5. Made in style of the shoe box with a shallow lid.
These boxes are designed for museum quality storage of baseball cards and collectibles. Interior Dimensions: 7 x 3 1/4 x 4 1/4