HammerTech Solutions All Metal A&A Gamma 4 Tool This installation/removal tool is designed to fit ALL A&A Gamma 3 and Gamma 4 pop-up heads. The anodized aluminum is meant to withstand most climates. This tool features the first-ever ALL-METAL Knuckle! It includes the necessary hardware to connect the tool to any standard pool pole. Align the 2 prongs with the corresponding slots on the head Twist clockwise to install Twist counterclockwise to remove We highly recommend the Metal Tool for those stubborn, hard-to-remove cleaning heads. HammerTech Solutions All Metal G4 Tool is designed to fit ALL Gamma 4 pop-up heads. Includes the necessary hardware to connect the tool to any standard pool pole. Align the 2 prongs with the corresponding slots on the head Twist clockwise to install Twist counterclockwise to remove We highly recommend the Metal Tool for those stubborn, hard-to-remove cleaning heads.