Mainly two types: a breathable multi-use car seat/nursing cover (listed around 28" x 30") and pull-down roller window shades (listed as a universal 16" x 18") that provide shade for children.
Attachment methods vary by model but commonly include suction cups and clips that slip over the top edge of the window; some listings also note self-adhesive or suction-cup mount options.
Listings describe the roller shades as blocking harmful UVA/UVB rays and helping protect children from direct sunlight and heat.
They un-roll using a pull tab and retract with a one-push quick-release button for easy rolling up when not in use.
No — the roller shades use mesh-style fabric that filters sunlight and provides shade for passengers while preserving visibility for the driver and other occupants.
These items are intended for babies and young children; one listing specifically cites a suggested age range of 0–36 months.
The roller window shades are sold in 2‑packs, with each pack including two roller sun shades sized 16" x 18".