The bottle retainer is the platic part which sits inside/ontop of the bottom shelf on your fridge door, it's there to ensure your bottles stay upright and don't move around or fall out when you close/open the door. So if you want to ensure you have no spillages, then this genuine Electrolux spare is up to the job.

As with all spare parts, please check the list of appliances prior to ordering to make sure this is the right shelf for your fridge freezer.