This straw pack is only compatible to the new version sippy cup - matte lid sippy cup in purple packaging. 

Two spare straws and a cleaning brush - especially for the NEW b.box sippy cup. Dishwasher safe. Made from PP and silicone, steel weighted ball. BPA, Phthalates and PVC free.

How to clean & replace straw:

• To replace straw, carefully grab the pull tab on the straw and pull down to release. Then, gently remove the weight and attach to spare straw.
• How to clean straw: Cleaning brush is designed to clean inside the straw, insert cleaning brush from base of straw and push up to clean straw inside. Gently pull down to remove brush, repeat for both sides with warm soapy water

PLEASE NOTE: New sippy cup replacement straws ONLY fit b.box’s NEW sippy cup, new straws will NOT work in the current sippy cup NOR will old straws work in the new lids. However, NEW lid is compatible with the current base. New replacements contain two straws, ONE weight & one cleaner.