This sizing kit includes one of each nail size in the shape and length you select.
I recommend ordering a sizing kit for every shape and length you plan to purchase in the future. Please note that your nail sizes may vary between different shapes and lengths—for example, your sizes in short square might differ from those in long almond.
To ensure the best fit for your press-on sets, it's best to order a sizing kit for each shape and length you intend to use!