This OEM hardened washer spreads load under the bolts of your lawn tractor. It is silver, made of metal, and is sold individually. Over time, the washer may become damaged due to wear and fatigue, and will need to be replaced. You may notice this part is damaged if you start hearing a grinding or rubbing noise between the tire rim and ring clip. You will need a pair of needle nose pliers to carry out this repair, which our customers generally found easy. You will locate the washer on the spindle, between the wheel and the ring clip.