The Land Rover Defender Gullwing Glass Panel is a replacement for your Front Runner Gullwing Window. It features 6mm tinted and toughened glass for visibility and durability. -Consists of:1 x Glass PanelMaterials used:Tinted and Toughened 6mm glassProduct dimensions:1044mm (41.1) L x 414mm (16.3) W x 6mm (0.2)HWeight:6.07kg (13.4lbs)Glass specifications:Visible Light:Transmission: 44Reflection Outside: 5Solar Energy:Total Elimination: 38Reflection Outside: 5Absorption 1: 47Direct Transmission: 47SHGC: 0.62Shading Coefficient:Ratio: 0.71U Value:(W/m2).K (Center of Glass): 5.8