This simple horizontal filament spool holder designed for the A1 mini saves you the space needed on the wall. The installation method is the same as the holder in the packaging box, without the need for tools or additional screws. The filament guide ensures smooth operation and prevents the printer from awkwardly pulling the filament. However, for the best results, it is recommended to insert a PTFE tube. It is best to use a high infill rate for printing.