Auto Drive Blocks Heat, Collapsible, Compact, Max AD24M-43, Black,28.00 x 31.50" Universal fit on car windshield for versatile use Can be installed both horizontally and vertically without tools High resistance to sunlight and UV rays for enhanced durability Protects car interior from cracks, color fading, and damage Twists to a compact size for easy storage Care instructions: Do not water wash, bleach, or dry clean Model# AD24M43 for easy identification