6061 extruded T6 heat treated, full CNC Includes 3 sinking head Titanium bolts, 3 nylon spacers and 1 polyurethane shock absorber Weight 65g for the plate, 85g for the whole set Compatible for all ECHO 20" frames after 2005. And all ADAMANT / GU / CZAR / ZOO! 20" frames Available in 10 anodized colors