5 1/2" barrels.-- 12 cylinders--11 rubber nipple guards, lost one -- 3 different kinds of nipples that all work good.--two nipples wrenches -- two cylinders have square nipples in them that is what the tee handle is for.Brass caps holder.horn cap setter. $2000.00  +$50.00 shipping added two things.WOULD A PAYMENT PLAN WORK FOR YOU?