A great way to bling out your aircraft. Comes in 4 different colors. It spreades the load when you tighten the bolts preventing damage to yor fuselage. High quality wide washers. Come in two sizes that can fit M3/ #4-40 threads or M4/#8-32 threads Choose from Red, Blue, Gold, and Black! Sold in packs of 10 Material: aluminium 6061-T6 (anod