Ø in LEGO part names Many LEGO part names use a Ø character in the name, for example, Armor For Hand W/Ø 3.2 Shaft (28803) or Beam A 4M Ball/Cup Ø10.2 (90611).  Can anyone explain what the Ø means?
Ø is a pretty standard notation for diameter. So w/Ø 3.2 Shaft means the item has a shaft that has a 3.2(mm) diameter.