Start with clean, dry nails

Remove existing polish, wash your hands, and dry them thoroughly. Follow the preparation instructions supplied with your nail adhesive. A clean surface helps the press-on sit evenly. If your natural nail is damaged or irritated, wait until it has recovered before applying a new set.

Measure each nail separately

Every finger is different, and your left and right hands may need different sizes. Use a soft measuring tape or a strip of paper to measure straight across the widest part of each nail, from sidewall to sidewall. Width is measured across the nail—not around it.

Record the measurements in millimeters, from thumb to pinky, and compare them with the preset reference in our US Nail Size Guide. Our catalog offers fixed sizes XS, S, M, and L depending on the design. Sizing can vary by nail shape: email your measurements and the product name so we can help confirm the right option.

Look for edge-to-edge coverage

A well-fitting nail should cover your natural nail from side to side without pressing into the surrounding skin. It should feel comfortable rather than tight. Do not force a nail that is too narrow. If a nail is slightly wide, carefully file its sides before applying, following the product instructions.

Choose the shape that fits your day

A shorter shape is an easy starting point if you type frequently or prefer a subtle finish. Longer styles give more room for decorative details. Look at the actual style and length listed on each product page; a size option changes fit, not necessarily the design’s length.

Make a note for next time

Keep your measurements and preferred style with your favorite design. Include your selected fixed size and style in the inquiry. Availability and preparation timing are confirmed by our team before a purchase is arranged.

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A note from our team: this article offers general style and care guidance. Check the instructions for your specific nails, adhesive, and remover.