This regulation size fiberglass backboard fuses 3 layers of fiberglass on the face and 2 on the back, resulting in a 1-1/8" thick high-density backboard. The thermally-fused construction of these multiple layers provides years of practice and game time for students and players. A moisture-resistant barrier from a gel coat sealant provides extra strength and protection. It is also hand laminated, making it ideal for outdoor use.