Bearing Buddy&reg; Stainless Steel Bearing Protectors (1.781) With Bras - Pair 1.781 inch diameter (Approx. 1-3/4") Prevents wheel bearing failure on boat, snowmobile, ATV, horse, RV and utility trailers Eliminates bearing repacking - Keeps water and dirt out of hubs and bearings Stainless steel construction inside and out - Easy to install Please see measurement instructions (secondary picture) to confirm correct sizing.