Hello! This listing is for two (2) air brake shoes and one (1) Brake hardware kit that services one wheel. The brake size is 12.25 drum diameter by 4 inches wide for a 10k-15k trailer axle. It replaces Dexter part numbers 040-321-01 / 040-321-02 / 040-321-03. We ship this same day in a large U.S.P.S flat rate box.  

 If you have any questions or are looking for a different type or size of brake, we can surely help! Just send us a photo and we can identify what you have, our stock of brake shoes and pads are like no other! We have the widest availability of brake shoes for airbrake and other systems like electric and hydraulic. We also have another listing that includes the Brake Drum, Wheel seal, shoes and brake kit - in a bundle that ships in two separate boxes or on a pallet when multiples are ordered, but you have to email to specify that!

Thank you !