Feature●4 FT - 3/8" Diameter x .050 Wall Aluminum Tubing 6063 Alloy T-6 Temper Clear Anodized●MADE IN USA●Randall Manufacturing Co,. Inc part number 4 FT M-238●.375" OUTER DIAMETER .275" INSIDE DIAMETERDescription 4 FT - 3/8" Diameter x .050 Wall Aluminum Tubing 6063 Alloy T-6 Temper Clear Anodized