I use a car seat organizer with one of these in the passenger front seat. I wedged them both in the gap at the same time and adjusted them in the position I liked. Very sturdy together and I can use the cup with that for a cup I keep for drive-thru convenience items (utensils, sauce packs etc.). The organizer is black with a tan leather-like trim around the top edge. Perfect for my phone. The driver seat gap is just with the other gap filler alone. I like the loop that fits around the seat belt clip better than trying to stuff the clip through a pillow-type gap filler. It’s easier to clip the seatbelt in as well.
Nice finish for the design, a little more upscale. I chose black and I think it looks pretty nice.