The Oklahoma State Cowboys Golden Classic mini helmet display case comes with a black acrylic base, gold colored risers and mirrored back. Made of 1/8"-thick acrylic and features a clear acrylic lid. The case is perfect for a collectible mini helmet. It is officially licensed by the CLC and Oklahoma State University. Inner Measurements: 8" x 5" x 6", Outer dimensions: 9 1/2" x 7" x 7 1/2.