The product is a set of vintage HPI Racing Titanium Nitride shock shafts, measuring 3x27mm. These shock shafts are designed for HPI RC vehicles and are part of the suspension and steering system. Known for their durability and performance, HPI shocks are a popular choice among RC enthusiasts looking to upgrade or replace their current suspension components. The titanium nitride coating provides added strength and resistance to wear, making these shock shafts a reliable choice for off-road racing and hobby applications.