The Tripod End Frame Fitting requires three pipe legs be installed in-ground at the end of a line of swings. A properly installed swingset requires 2 End Frame connectors at the ends of the swing. Sets with more than 2 seats require a middle frame connector to space out the seats according to federal safety guidelines. Guidelines require the top rail to be approximately 11 feet in length. The end frame comes with set screws to connect the pipe legs and top rail to the connectors. This connector fits a schedule forty 2 inch or 3-1/2 inch pipe (2-3/8 inch leg and 2-3/8 inch top rail or 3-1/2 inch leg and 3-1/2 inch top rail). Available in red or green.