Approximate Measures: Medium Shelf 11.2''L x 7.6''W x 5.2''H. Large Shelf 12.6''L x ''8.9''W x 6''H Two size shelves Included, stackable and expandable. Easy assembly without tools and screws. Come with non-slip pads, durable and sturdy. Stacking shelf dividers for kitchen cabinet, counter, cupboard, pantry organization.