The prince lionheart beaker lid and spill proof cup valve cleaner fitting included easily attaches to front or back of dishwasher rack and the lid basket snaps on and off the fitting washes up to 11 lids at a time the only dishwasher basket made specifically for beaker lids and spill proof cup valves dishwashers water jets agitate and shake the basket to thoroughly clean all brands of beaker and sippy cup valves