Check the listing for details. Sims Limbsaver TwistLox Limb Dampeners Black 4 Pack. Color: Black, Condition: New. Listed at 19.74 USD. Sims Limbsaver TwistLox Limb Dampeners Black 4 Pack Simply slide in, twist and lock up for a snug and secure fit. Can be installed in two orientations for wide or narrow spaced limb gaps and can be positioned to the shooter preference using two or more per limb. Mfg Number: 4720WARNING: 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.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.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.