The Front Runner Glass Gullwing Window replaces the rear window of a Defender and allows you to tilt up the window, creating 100% easy access to the contents of your load area. The locking Front Runner Gullwing Window can be fitted together with the Front Runner Gullwing Box (GWDL004) to create extra gear storage possibilities. The 6mm toughened glass with tinted laminate allows you to see what is stored, keeps your valuables secure, and adds a stylish finish to your vehicle's exterior.Note: The glass and aluminium panels for the Land Rover Defender are not interchangeable.