Twice the life and durability of ANY cast piston. 
 
Moly coated skirts. Why pay 370$ for a $50 (literally) set of cheap cast pistons?
 
Piston choice defines the durability of your lower end.  Do you really want the cheapest piston you can find? Probably not..
 
Rings, pins, circlips included
 
Top quality USA production.