The Cartrend car sock blocks the sun and protects your baby or child from heat. The door sock is transparent enough to look outside. The car sunshade can cover the entire rear side window and prevents overheating of the car interior. The car door sock is designed for vehicles with window frames. This means the sunshade is effective even with the windows open; just pull it over the frame and you're done. The door sock also prevents flies or bugs from entering the interior and reliably protects your children. The product size is stretchable from 63 to 113 cm and fits perfectly in most cars. The set includes 2 door socks for the right and left rear side windows.