Description Optical Crystal w/ Gunmetal Coating (on the triangular sections) Presentation Box Base included, unassembled Sizes: OCGR08 (small): 8" x 6 1/2" x 3/4" OCGR09 (medium): 9" x 7" x 3/4" OCGR010 (large): 10" x 7 1/2" x 3/4"