The 3-point press-on fit check.
A printed size number answers only one small part of the problem. Before glue or tabs, check the tip from above, from the free edge, and from the side.
01
Width
Does the tip cover nail plate sidewall to sidewall?
PASSCovers the visible nail plate without resting on side skin.
CHECK AGAINNatural nail is exposed, or the artificial edge overlaps skin.
Troubleshoot width →02
Curve
Does the underside arch match without force?
PASSThe tip rests comfortably; sides do not need squeezing to stay down.
CHECK AGAINSides spring upward, the tip pinches, or the center/edges hover.
Troubleshoot curve →03
Contact
Does the dry tip stay stable when pressed lightly?
PASSNo dramatic rocking or large hollow gap before adhesive.
CHECK AGAINThe tip seesaws, pivots, or lifts at one end as another is pressed.
Troubleshoot contact →What the failure pattern usually tells you to inspect first
| What you see before glue | First variable | Best next page |
|---|---|---|
| Natural nail visible at one side | Width / centering | Press-ons too small |
| Tip sits on side skin | Width / base shape | Press-ons too big |
| Sides spring up when pressure stops | C-curve | Press-ons too curved |
| Tip rocks around one high point | Overall profile/contact | Rocking before glue |
| Dry fit is flush; bubble appears during application | Placement / adhesive contact | Air bubbles under press-ons |
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