XLAB Turbo Wing w/Gorilla Matte Cages Saddle Mounted Dual Water Bottle Carrier SystemXLAB Turbo Wing w Gorilla Matte Cages Saddle Mounted Dual Water Bottle Carrier System. The Turbo Wing carrier features fifteen positions for easy and safe accessLow positioning for easy step over Tunnel proven to have Zero drag in the high position Anti flex design prevents whiplash bottle launching Use the included X Straps to secure tubes or bags to the carrier Use the Sonic Nut (Sold Separately) to secure CO2 cartridges Materials: Aircraft Aluminum