The placeable threads are stainless steel
Hunter tread has traction points on the top. These points grab the bottom of your boot, which is great for off road riding or slippery riding conditions.
About Knight Design Finishes:
Anodized Finish
Anodizing is a coating applied to the aluminum. It permanently bonds to the metal, and wears quite well. It is harder than aluminum.
Stainless Steel
The replaceable treads (found on all the wide foot pegs) are stainless steel. This material is used all over the world for medical applications, non-rusting fasteners, and in cookware.
MADE IN USA