1: Find a transparent tape or piece of paper
Place it on the widest area of your nail bed. Make sure its covering the entire curve of your nail.
2: Mark the length
Mark down 2 sides of your nail
3: Measure & write down each nail size
Remove the tape and measure with ruler.
4: Select your size
*Millimeter as unit, manual measurement, its normal to have 1-2mm deviation
*If your size is in between, we recommand you go for the bigger size(You can slightly file the nail tips if needed)