Sizing Guide
Press-on nails only look (and last) their best when they fit edge to edge. This two-minute guide helps you pick the right size, length, and shape.
Finding your size
Every NailZen set includes multiple sizes per finger so you can match each nail individually — most people are not a single uniform size across all ten.
- Lay each press-on over your natural nail before applying. The correct size covers your nail edge to edge, sidewall to sidewall, without overlapping the skin.
- Between two sizes? Go smaller. A slightly snug nail bonds fully and lasts; an oversized one rests on skin and lifts early.
- Note your sizes. Once you find your match per finger, they stay consistent — jot them down for next time.
Size chart (width across the nail)
| Size | Approx. width | Typically fits |
|---|---|---|
| XS | ~13–15 mm | Petite nail beds, pinkies |
| S | ~11–16 mm | Slim to average |
| M | ~12–17 mm | Most common — thumbs & index |
| L | ~14–18 mm | Wider nail beds, thumbs |
Tip: measure the widest part of each natural nail in millimetres and match to the closest size.
Length & shape
Lengths: Short (everyday, low-maintenance), Medium (elegant, versatile), Long (statement). You can always file a longer set down, never up — so when unsure, size up in length.
Shapes: Almond and Oval flatter most hands and elongate fingers; Square and Squoval read clean and modern; Coffin and Stiletto are bold, dramatic choices.
Still unsure?
Use our Shade Finder to match colour to your skin tone, read the full application guide, or contact us — we're happy to help you choose.