Filament guide Sergio Lanna

I put on the top of my Hictop printer 3 supports for 3 different filament skeins so, to facilitate filament sliding while the extruder works, I made these guide supports.
I have made them of two types, with only one guide or with a double guide. I think the double guide could be more useful for the sides.
Choose the most appropriate installation direction depending on how the filament bundle is positioned with respect to the extruder. Use M5x8 screw.
I made for HicTop HIC-3DP17