Light Gridfinity bins for IKEA Alex drawers

Assortment of light (hollowed out) bins to fix IKEA Alex drawers (36x70cm model, see https://www.ikea.com/au/en/p/alex-drawer-unit-white-40473549/) height.The 6u high bins fit stacked 2 high in the shallow drawers.The 12u high bins fit without stacking in the shallow drawers The 18u high bins fit without stacking in the deep drawers.