Same question here. I 'think' they slid unto something.. maybe to keep the carpet flap on it?
Becareful when you put the seat back up, sometimes the bottom portion of the rear seat protector would get caught in the foam thing. I added a lot of industrial strength velcro everywhere just to make sure they keep still.
2018 Toyota C-HR XLE Premium Magnetic Gray
Current: Blacksys CH200 Dashcam, Solargard UP Tint, LED Interior, OPT7 Color-Smart LED Strip Interior Footwell Lighting
Want: HID Headlight, LED Foglight, Android Auto HUD, Solar Sunshade
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