The trim lid is an accessory of the Ultrabox drawer whose function is to hide the joints between the sides and its front panel, in order to give a much more aesthetic finish to the drawer. They go perfectly well with all the drawers of this model regardless of their dimensions. It is made of plastic, a durable and easy-to-clean material so it will always keep looking like new. Its gray plastic finish combines very well with different decorations and spaces, such as a bathroom or a kitchen.