The Cargo Divider Bar easily fits onto the Cargo Stabilizer Bar (bar not included) with 2 set screws (included). Now your cargo will not slide from one side to the other with the Cargo Divider Bar in place. Designed for the HitchMate Cargo Bars (#4015 and #4016). Features Heavy-Duty Steel construction Prevents load from shifting side to side Installs in seconds Fits #4015 & #4016 HitchMate Cargo Bar