Muteki 41886L Purple 12mm x 1.5mm Closed End Spline Drive Lug Nut Set with Key, (Set of 20) 34 millimeter length and 20 millimeter outer diameter closed end spline drive design Closed ended Muteki lug nuts weigh a mere 36 grams each 34mm length 20mm outer diameter closed end spline drive design Closed ended Muteki lug nuts weigh a mere 36 grams each