Neilmed Sinus Rinse kit comes with 60 sachets of easy to dipense USP grade preservative free, sodium chloride and sodium bicarbonate mixture (pH balanced & isotonic for maximum comfort). easy squeeze bottle comes with volume marker. each sachet contains a precisely measured amount to mix with 8oz(240ml) of luke warm distilled water, taking the guessworkout of preparing this solution. the kit also contains step by step directions for use and extensive eductaional material that is simple to understand.