diff --git a/mod/widgets/custom_widgets/size_input.py b/mod/widgets/custom_widgets/size_input.py
index 3e6265b..cfd79e1 100644
--- a/mod/widgets/custom_widgets/size_input.py
+++ b/mod/widgets/custom_widgets/size_input.py
@@ -2,7 +2,7 @@
 
 import FreeCAD
 
-from mod.constants import DEFAULT_MIN_WIDGET_WIDTH, DEFAULT_MAX_WIDGET_WIDTH,AUTO_UNITS_SELECT
+from mod.constants import DEFAULT_MIN_WIDGET_WIDTH, DEFAULT_MAX_WIDGET_WIDTH,AUTO_UNITS_SELECT,DEFAULT_DECIMALS
 from mod.tools.dialog_tools import warning_dialog
 from mod.tools.stdout_tools import debug
 from mod.widgets.custom_widgets.base_units_input import BaseUnitsInput
@@ -11,8 +11,8 @@
 
 class SizeInput(BaseUnitsInput):
 
-    def __init__(self, min_val=-10e12,max_val=10e12,minwidth=DEFAULT_MIN_WIDGET_WIDTH, maxwidth=DEFAULT_MAX_WIDGET_WIDTH,parent=None,value=0):#maxwidth=45
-        super().__init__(min_val,max_val,minwidth,maxwidth,parent)
+    def __init__(self, min_val=-10e12,max_val=10e12,minwidth=DEFAULT_MIN_WIDGET_WIDTH, maxwidth=DEFAULT_MAX_WIDGET_WIDTH,parent=None,value=0,decimals=DEFAULT_DECIMALS):#maxwidth=45
+        super().__init__(min_val,max_val,minwidth,maxwidth,parent,decimals)
         # Initialize unit system
         # self.quantity_box.setUnit("m") #<Not needed
         self.setValue(value)
diff --git a/mod/widgets/dock/dock_dp_widget.py b/mod/widgets/dock/dock_dp_widget.py
index ab6b974..b22ee8f 100644
--- a/mod/widgets/dock/dock_dp_widget.py
+++ b/mod/widgets/dock/dock_dp_widget.py
@@ -26,7 +26,7 @@ def __init__(self, parent=None):
         self.dp_label = QtWidgets.QLabel(__("Inter-particle distance: "))
         self.dp_label.setToolTip(__("Lower DP to have more particles in the case."))
 
-        self.dp_input = SizeInput()
+        self.dp_input = SizeInput(decimals=6)
         self.dp_input.setToolTip(__("Lower DP to have more particles in the case."))
         self.dp_input.setValue(Case.the().dp)
         self.dp_input.value_changed.connect(self.on_dp_changed)