Stackable magnetic spool roller

Hi everyone! I made a simple spool roller with minimal hardware for my BMCU im using with my A1mini.You can easily separate them or stack them because they connect via magnets as you can see on the GIF below.Im planning to make it with printed bearings in the near future.I used fuzzy skin on the rollers to prevent the spools from slipping.It is compatible with a wide variety of spools up to 78mm wide! For the assembly you will need:-4pcs of 608RS bearings-4pcs of ⌀5x2 mm magnets-4pcs of m3x12 screws for the cross beams