If you’re choosing press-on nails for the first time, you’re probably most worried that the set you pick won’t fit your fingers. A piece that’s too wide presses into the skin along the side of your nail, while one that’s too narrow leaves a gap at the sidewall, which makes it lift sooner while you’re wearing it. That’s why a set isn’t sold in just one size: the Nude ballerina set contains 24-30 reusable nails in 12-15 different sizes, so you can choose a separate, well-fitting nail for each finger. Below, we’ll go through how to measure your nail width at home, how to match it to the actual sizes in the set, and what to do if you’re unsure between two sizes for one finger.
- Measure the widest part of your nail, from sidewall to sidewall—not at the tip.
- Measure all ten fingers separately, because nail width varies from finger to finger.
- Always try the nail on your own nail before gluing it on.
- If you’re unsure between two sizes for one finger, choose the smaller one.
Why nail width matters when choosing press-on nails
Size isn’t a minor detail, because your nail’s width directly affects how the press-on feels throughout the day. A wider press-on presses against the skin at the sidewall, which can feel uncomfortable and cause mild irritation after a few days. A narrower nail, on the other hand, doesn’t reach the sidewall, leaving a gap; glue can get air through this exact gap, making the nail more likely to lift before its wear time is up. That’s why a set contains 24-30 nails in 12-15 sizes: the goal isn’t to force a single size onto all ten fingers, but to choose a separate, well-fitting nail for each finger, since the thumbnail is typically much wider than the pinky nail.
Along with width, the curve depth of your nail also affects how stable the applied nail feels; if you’re interested in this topic too, you can read about why fit depends on more than just width in the article about the nail C-curve.
How to measure your nail width at home
You don’t need anything special to measure your nails: a soft, flexible tape measure or a narrow strip of paper and a ruler marked in millimeters are more than enough. The key is to always measure the widest part of the nail—that is, the point where the nail widens the most between the two sidewalls. This is usually in the lower third of the nail, not at the tip. If you measure at the tip, you’ll regularly get a smaller measurement than the actual width, and when you try the nail on, you’ll find that the one you chose is still too tight.
Measure all ten fingers separately and note down each result, because nail width isn’t uniform: the nails on your thumb and index finger are generally much wider than those on your ring finger or pinky. This is the generally accepted measuring principle, described in the same way in most press-on guides (source: Eyecandys).
No tape measure handy? Try the paper-strip method
If you don’t have a flexible tape measure handy, you can also measure with a narrow strip of paper or a piece of adhesive tape. Bend the strip to follow your nail’s curve, run it along the base of the nail from one sidewall to the other, then mark the two outer points with a pen. Next, lay the strip beside a ruler and read the distance between the two marks in millimeters (source: nailhow). This method is especially useful when you’re traveling or just want to get a quick idea before ordering the set.
How to choose the right size from the set
The measurements you’ve taken are only a guide on their own; the actual size choice comes down to trying the nails on. Before gluing on any of them, hold it over your own nail and check whether it covers the sidewalls exactly without overlapping them or leaving a gap. This is DIVAZ’s own recommendation for this set, and it’s more reliable than any general millimeter chart because it’s based on the shape of your specific nail, not an average shape.
If you’re unsure between two adjacent sizes for a particular finger, choose the smaller one—this is exactly what DIVAZ’s own instructions say for this set. There’s a practical reason for this: you can easily file a nail that’s just a hair too narrow to refine its sides with a few strokes, while it’s difficult to adjust an overly wide nail afterward without changing its shape. Starting with the smaller size means you stay in control of the final fit.
What to do if the nail you tried on doesn’t fit exactly
The box also contains a file, 2 g of glue, and an alcohol wipe alongside the set, so you don’t need to buy any extra tools to make adjustments. If the nail you tried on is just a hair wider than your own nail, carefully file its sides until it follows the line of your nail exactly, then wipe it with the alcohol wipe before gluing it on.
If, on the other hand, a nail clearly presses into the skin along the sidewall or leaves a visible gap, don’t force it on: try the adjacent size instead, before you touch the glue. If the shape bothers you too—for example, if a nail looks too pointy or too flat for your nail in addition to being too wide—you can find out more about gently reshaping the existing nail in the article about adjusting the shape by filing.
Application and wear at a glance
Once you’ve found the right size for each finger, applying the nails at home takes about 10 minutes, with no UV lamp or salon appointment needed. From then on, how long your manicure lasts doesn’t depend on one fixed number; it depends on how you treat it day to day: how thoroughly you degreased your nails before application, and how much you put your hands through. The nails typically wear out sooner when you’re washing dishes, working out, or doing manual labor than during a less demanding everyday routine.
You don’t have to throw away the nails you’ve removed: if you carefully clean off the glue residue, you can reuse the same set several times, provided the sizes still fit the same way later on. If you’re also unsure about nail length—for example, whether a longer or shorter nail would suit your daily routine better—this question is covered separately in the article about choosing nail length. And if you’re not even sure about the shape yet, the guide to choosing between almond and ballerina shapes can help before you focus on size. You can find more guides to shape, length, and size on the blog.
If you’ve just measured all ten of your fingers for the first time and have a clearer picture of your own size range, you’ll most likely find a suitable nail for every finger among the Nude set’s 12-15 sizes—and trying them on will let you make sure before gluing them on.