SIZE GUIDE Measure the widest part of each nail bed in millimeters, from thumb to pinky. S: 15 · 11 · 12 · 11 · 9 mm M: 16 · 12 · 13 · 12 · 10 mm L: 17 · 13 · 14 · 13 · 11 mm XL: 18 · 14 · 15 · 14 · 12 mm
If you’re between sizes, we recommend sizing up for the most comfortable fit. For custom sizing, enter the exact measurements of each nail.