The AAE Advante-X Mountain Series is a micro-diameter stabilizer designed to offer archers the advantage of a micro diameter .500 (1/2”) bar for additional wind reduction. The Advante-X is constructed from high-modulus carbon for maximum stiffness.WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.