b.box Cleaning Brush SetThis set contains every cleaning brush you need to hygienically clean sippy cups, drink bottles, straws and other hard to reach places, all on one handy ring. Brushes clip in and out of the handy ring. This set includes five types of brushes: 1x Sippy cup straw brush 1x Brush for tritan drink bottle, insulated drink bottle and bowl + straw 1x Pointed fine brush to clean valves + small holes 1x Teat brush 1x General cleaning + rim thread brush