RK Blades Stainless refers to stainless steel hockey skate blades manufactured by RK (Riedell-Kleen). These blades are known for their durability, corrosion resistance, and consistent performance on the ice. They are often used as replacements for worn-out skate blades and are compatible with various skate models. RK stainless blades provide a good balance of sharpness retention and affordability, making them a popular choice among recreational and competitive players.