Unipress Cuff and Collar set 2 Cuff 1 Collar Nomex Cover and Pad , This Nomex Cover is not highly recommend for Customer Who care about quality pressing Shirt Cuff and Collar . Because Nomex is high Temperature resisstance . Nomex Cover could last up to 3 to 4 month .However your Pad could not last 3 to 4 month .Nylon Pad 50 oz the max it can last is 10 weeks to 12 weeks, Nomex Cover are Washable you can wash it and reuse it again .Don't forget to change your pad 50 oz after 6 weeks . That help your Machine clean to avoid stain transfer from Starch build up on your old cover to white shirt.