Bison 7 1/2' Standard Aluminum Portable Outdoor Bleachers

Bison 7 1/2' Standard Aluminum Portable Outdoor Bleachers These outdoor bleachers are built for a lifetime of dependable, trouble-free sports seating…Weatherbeater bleachers come with recycled plastic ground runners to keep support framework raised from grass or dirt • Recycled runners will not rot like wood runners used by other manufacturers • Available in 7½’, 15′ or 21′ lengths in either 3 or 4 tier heights • 2 tier bleachers are only available in 15′ lengths • Heavy-duty 2″ x 10″ anodized aluminum seat planks • 100% aluminum welded support structures • Planks have end caps for a finished look without sharp edges • High-grade zinc plated hardware • Five-year limited warranty on structure, two-year limited warranty on planks.