The backup attachments kit includes: 1x Flosser Brush Tips - to floss and brush at the same time so you never miss a session 1x Classic Orthodontic Tip - the basic water flosser tip to clean in between teeth and braces 1x Jet Tip - strongest tip for blasting away the toughest of plaque 1x Hook Tip - designed to get the tough to reach plaque hiding behind your teeth 1x Gumline Tip - softer tip designed for cleaning the gum lining and preventing gum disease 1x Tongue Tip - to clean out your tongue and eliminate bad breath