​The Front Runner Glass Gullwing Window replaces the stock LEFT HAND rear window with an upward/outward opening window that is hinged at the top. Create easy access to the rear storage area of your Toyota Land Cruiser 76. -Consists of:Steel Frame Hinges Gas strutsLocksSet of keysGlass Panel Materials used:Black powder-coated 3CR12 stainless steelTinted and toughened 6mm glass Product Dimensions:886mm (34.9)W x 537mm (21.1) H x 53mm (2.1) D Weight:14kg (30.9lbs) Glass specifications: Visible Light:Transmission: 44Reflection Outside: 5 Solar Energy:Total Elimination: 38Reflection Outside: 5Absorption 1: 47Direct Transmission: 47SHGC: 0.62 Shading Coefficient:Ratio: 0.71 U Value:(W/m2).K (Center of Glass): 5.8