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Choose your sets →Nail size guide - Long Coffin
Every SIYOU set comes in Small, Medium and Large. Measure the widest part of each nail in millimetres, then choose the size that fits most of your nails using the chart below.
Between sizes? Size up for a comfier fit — especially if you have flatter nail beds. Wrong size anyway? We exchange it free within 14 days of delivery.
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Mermaid Shore — Long coffin nails in a pastel pink and baby blue ombre, with the two colors meeting mid-nail and swapping direction across the set. Fine silver glitter lines swirl over the blend, joined by small sculpted silver wave accents and scattered clear rhinestones.
Because the gradient reverses from nail to nail, the hand reads as a set rather than ten copies of one design. The glitter is drawn in thin curved lines instead of scattered flat, which is what gives the surface its water look. Long coffin keeps the ombre stretched out enough to see the full blend.
Features & Specs
- Wear Time: 7–10 days with the included adhesive tabs; up to two weeks or longer with the included nail glue and proper care.
- Length & Shape: Long Coffin.
- Finish: Glossy finish in Pink and Light Blue.
- Durability: No dry time; designed to resist chips and smudges during normal wear.
- Ethics: Vegan & Cruelty-free and reusable.
[ INCLUDED + APPLICATION ]
THE KIT + THE METHOD
See exactly what arrives with your set, then follow the detailed adhesive-tab method for a clean, secure application.
FIG. 04 Gentle removal — take your time
- Soak your nails in warm water and mild soap for 10–15 minutes to loosen the adhesive.
- Starting at one side, gently lift with the included cuticle pusher — never force or pry a nail free.
- If a nail resists, dab a little cuticle oil at the edge and let it sit for a minute before trying again.
- Once every nail is off, buff away any leftover adhesive and finish with cuticle oil or hand cream to hydrate your natural nails.