Essential straw and cleaning kit - only for the b.box V2 sippy cup (with the matte lid). Does not fit the V1 sippy cup with the shiny lid.
To replace straws, remove straw by pulling base of the straw to the side with your thumb and pull down to release. Cleaning brush is designed to clean inside the straw.
Made from PP and silicone, steel weighted ball.
BPA, Phthalates and PVC free.