Banana Spool Holder V1

It's shaped like a banana and it's modulable 

Needed:

• ⌀ 12mm tube/rod (whatever lenght you desire)
• 4x 608zz bearins (per spool)
• 4x M3x8 screws (per spool)
• 4x M3 inserts (short ones, 3mm height)

No glue or lube needed