The mini size lets you keep it in your toolbox or pocket. Carefully Designed Set: The stainless steel valve stem removal tool is suited for various standard Schrader valve cores. High Quality: The stainless steel valve stem removal tool is constructed from electroplated mirror-polished stainless steel, while the 3-in-1 Presta Schrader valve core removal tool is precision CNC machined from high-strength aluminum, undergoes blue anodization for excellent corrosion resistance and durability.