The Child Cup Holder fits multiple sized containers including sippy cups, water bottles, juice boxes, and drink pouches. It can be used on the left or right side of the seat and is dishwasher safe (top rack only). The Child Cup Holder if exclusively for use on select BRITAX Convertible Car Seats including: ROUNDABOUT 55, MARATHON 70, MARATHON 65, BOULEVARD 70, BOULEVARD 65, BOULEVARD 70 CS, BOULEVARD 65 CS, ADVOCATE 70 CS, ADVOCATE 65 CS

Compatible with the following products: