It's more than just a product.

A flat A2 tab is only a number. It does not show opacity.
The AP Shade Key is made of the same APVolution S material the technician uses for the case, at real crown thickness, hand finished and polished.

Choose the ingot from the actual stump shade and from what the material will do over that stump.

 

Less guessing, better shade control, fewer remakes.
 

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