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Choose your sets →Nail size guide - Medium 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 Luster — Medium coffin nails alternating opalescent lilac-pearl chrome with warm amber-caramel. Accent nails carry hand-painted orange line work in a wing pattern, an arc of pearl beads, gold studs and a fine gold rim along the cuticle.
The two finishes pull in opposite directions — the chrome nails shift lilac to silver as they move, while the amber nails stay warm and solid. That contrast is the whole design. The painted wing lines are drawn freehand, so they differ slightly between nails.
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: Medium Coffin.
- Finish: Glossy finish in Orange and Purple.
- 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.