Snyder trucks are forged aluminum trucks, the strongest you can buy.  Snyder skate products are the best you can buy and 100% American-made.  Snyder has 4 different trucks, Super Delux, Imperial, Super Delux Lite, and Imperial Lite.  Each truck is specific to each plate.  All Snyder trucks are 7mm axles only.  Shown here are the Super Delux Lite and the Imperial Lite.  The main difference will be the size of the truck, the regular truck will be heavier and have a lot more material surrounding the axle.  This item is sold as a set of 4 trucks.  Advantage Truck will be the super Delux Lite truck.