3 pack of 8 FT (96") 1" Channel 1/16" Walls 5/8" Long Legs Clear Anodized Aluminum. 1" is the inside width. The channel will fit 1" material. 6063 Alloy Aluminum with a T-6 temper Made in America by Randall Manufacturing Benefits of Anodized include rust resistance, easy to paint and clean, beautiful finish for inside or outside use and longer lasting than mill finish counterparts. Anodized is highly recommended for any application that will be exposed to moisture of any kind