1-1/2" x 2-1/4" x 3/4" thick solid Optical Crystal.
2-1/4" x 3-1/8" x 1-1/8" thick solid Optical Crystal.
3" x 4-5/8" x 1-1/8" thick solid Optical Crystal.
2-3/8" wide x 3-1/4" high x 3/4" thick (at base) solid Optical Crystal.
4" wide x 6" high x 1-1/8" thick (at base) solid Optical Crystal.