# DIMLDRBLK System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2026/System%20Variables/D/(D).md) ## Function Description: The DIMLDRBLK system variable is used to specify the 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 can not be used as custom arrowhead for dimension or leader. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables/DIMLDRBLK.html) · © Gstarsoft Co., Ltd.