It has been modelled so that the chain can be pre-cut , knotted and inserted through the holes. Waiting for your feedback, thanks. 3D PRINTING SETTINGS Print Settings : 0.15 mm speed , infill : 20% , Fill pattern : Grid Supports : support on build plate only Scale it ,the file size : 88.72 mm x 60.54 mm x 83.5 mm Filament settings : Cooling /Disable fan for the first : 3 layers