Acrylic in Dark Smoke Color Helps to Reduce Heat Build-up in Parked Vehicles Specification: Custom-made, insulated folding heat shields help reduce interior temperature and protect your vehicle’s interior, seats and dash from the damaging rays of sun and heat that penetrate the windshield made from tinted cast acrylic Easy to Install with Included 3M Brand OEM Approved Tape Hardware Included. For Installation Instructions Pls. Visit Youtube (Hot To Install Speedzone Rear Roof Visor) Warning: Patented Product Patent Number 8,777,292