# DIMLDRBLK System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2021/System%20Variables/D/(D).md) ## Function Description: The DIMLDRBLK system variable is used to specify arrowhead type for leaders. | | | | --- | --- | | Type | Strings | | Saved in | Drawing | | Initial value | "" | Input a Period "." to restore the default settings( closed- filled arrowhead). **Note:** the annotative block could not be used as custom arrowhead for dimension or leader. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/D/DIMLDRBLK%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/D/DIMLDRBLK%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/D/DIMLDRBLK%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/D/DIMLDRBLK%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/D/DIMLDRBLK%20System%20Variable.md)