Keyring Rotating Display (with an old spool)

This is a counter display for showing keychains. I made it by recycling some parts I already had: a 10mm steel rod from an old (paper) printer, an empty, old, SUNLU spool and 2x 10mm bearings. The top part can rotate. I can&#39;t say where you can buy rod or bearings in case you want to build this object youserlf, since I already had, but I can say you what are precise dimensions. Materials needed:An iron or steel rod having the external diameter of 10mm. As said, I recovered this part from an old paper printer I dismantled first than throw it away:2x bearings having external diameter 26mm, internal hole 10mm and a 8mm height. Those bearings I already had are made by SKF:An empty SUNLU spool. This spool have the external diameter of 196mm and internal hole 72.5mm diameter, If you have a spool having same exact dimensions, you can use it:Then you&#39;ll need at least 6 (best 8) short self-tapping screws having 2 or 3mm diameter:And at least 15 M3 screws + M3 nuts:<img src="https://maker