Specifications include, but are not limited to: ANCHOR STUB,POST,MASSH-400 BREAKAWAY COMPONENT FOR 4 IN SQUARE SIGN POST, XCESSORIES SQUARED PART NO. SB13-CTA36-G; KIT,REPAIR,HINGE,MASSH-400 BREAKAWAY COMPONENT FOR 4 IN SQUARE SIGN POST, XCESSORIES SQUARED PART NO. X4-HRK; SLEEVE,HINGE-PIPE,POST,MASSH-400 BREAKAWAY COMPONENT FOR 4 IN SQUARE SIGN POST, XCESSORIES SQUARED PART NO. X4-HSL-G; RECEIVER,POST,SQUARE,4 IN,MASSH-400 BREAKAWAY COMPONENT FOR 4 IN SQUARE SIGN POST, XCESSORIES SQUARED PART NO. SB13-400SQR-G; CAP,POST,4 IN,MASSH-400 BREAKAWAY COMPONENT FOR 4 IN SQUARE SIGN POST, XCESSORIES SQUARED PART NO. X4SQCC; HINGE ASSEMBLY,POST,MASSH-400 BREAKAWAY COMPONENT FOR 4 IN SQUARE SIGN POST, XCESSORIES SQUARED PART NO. X4-HINGE