Solid stainless steel truck wheel nut rings with open centre. These durable mirror finish stainless steel donut rings are a popular option for bus wheel trims, horse box wheel trims. Universal fit these will fit any 10 stud truck wheel with a 335mm PCD nut spacing. simply remove 2 opposite wheel nuts, place the trim on and re torque the wheel nuts. The PAR-630 Pair 10 stud nuts rings Open centre for 22.5" (335mmPCD) Donut rings for front steel wheel are made from Marine grade 303 stainless steel so will not rust.