California Contour covers and protects the portion of your face known as the T-Zone.
In doing so, while tanning in spa, on the beach or applying sunless spray, that area stays your lighter shade, while the areas you normally bronze, become darker. Built in goggles for uv tanning. 
The gap blurs light’s shadow as well as sunless spray, leaving you with a perfect blend. No harsh tan lines, guaranteed. 
New style “V2” shown in first photo, V1 as shown in light blue in photo 2 no longer available.