Spiky Fidget Roller Thing (old)

There is a new version of this thing that doesn't require the unicorn shaft, just a bearing and a M3x30 flat head screw. What you'll need: 1 x 626-2RS ball bearing (OD 19mm, ID 6mm, H 6mm) 1 x 60x6mm steel/aluminum shaft (Search for 6x60 DIN 7 or ISO 2338) 1 x Super glue (low viscosity)