Designed for extra stability in high traffic areasEnclosed face protects message from being mishandledDouble pedestal letterboard has extra stable base for secure placement in high traffic areas. Changeable letter panel has grooved felt surface for simple placement of letters and is enclosed with shatter-proof acrylic. Aluminum stand. Size of letterboard surface is 18H x 24"W. Overall height is 60". For complete set of white plastic letters, numbers, and symbols, see part number LH12. For letter storage box, see part number S1.