3 Pack of 48"L x 3/4" x .050" Wall Anodized Aluminum Square Tube 6063 Alloy 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