This is perfect protection against sun glare, heat, and harmful UV Rays. Easy to install and do not block out your sight when driving. Fixed with suction cups and hooks. Retractable design, pull the sun shade up when you need. Only need to install once and keep it still at the bottom of the windshield. It's super space-saving and time-saving for daily use. Adjustable width from 28 to 55 inches. Height can up to 47 inches.