Heavy-Duty Brown 72" Wide Vinyl Square Nose 1/4" Thickness Commercial Grade Stair Tread Federal Spec: RR-T-650E Type B Federal Spec: ZZ-T-001237 (GSA-FSS) Thickness: 1/4" at nose (tapers to 1/8") ; 1-1/4" square nose ; 12" Depth Weight: 1.5 Lbs / Lin Ft Install with water-based Stair Tread Contact Adhesive or quick-drying Neoprene Contact Cement. Secure inside of nose with Epoxy Stair Caulk - sold separately