Provide four independent 20 L single bin units with dimension 37.50 cm X 23.50 cm X 32 cm to stack vertically and save horizontal floor space greatly.
Adopt press type pop up lid design which can stay open stably even under stacked state to facilitate continuous waste throwing during long term tidying and sorting work.
Differentiate four single bins with yellow, blue, beige and green outer colors to mark plastic, paper, glass and metal recyclable categories, and attach ten pattern printed classification stickers.
Mold integrated carrying handles on every bin side wall to lift single units separately during waste emptying, and support outdoor camping temporary storage besides indoor waste sorting.
Expand product application range beyond garbage storage to hold cat litter and scattered sundries, and build flexible combinable storage system according to actual household space layout.