Roswell 360° 3"Universal ClampThe Roswell 3" universal clamp is designed to allow you to fine tune your tower speakers rear-facing direction. External set screws allow for full 360° rotational mounting positions to let you set it where you want and lock it down.Product Features:Sandblasted Clear Anodized FinishSaltwater Friendly360° Rotational Mounting1.9", 2.375", 3" Plastic Inserts IncludedCalifornia Residents:WARNINGCancer and Reproductive Harm -P65Warnings.ca.gov