It holds 48 total bottles, 24 on each side, so you can always find the color you want with a single glance.
Promising review: “This is better than advertised. Essie, OPI, Pop-Arrazi, Sinful Colors, SH Instadry, SH Triple Shine, SH Xtrreme Wear, Wet & Wild, SH Hard As Nails and Covergirl all fit perfectly; my Julep colors fit two to a compartment! The first row has adjustable dividers, you can use them to keep odd-shaped bottles or do what I do: use one side for my nail stamper, dotting tools, and the drying drops and the other for foam wedges and nail pens. It looks way neater easily tucked under my vanity instead of the baskets and baskets of polishes I had to hunt through!” —Clouds
Get one on Amazon for $29.99 (available in two colors).