One Rear Glass Gas Charged Lift Support For Back Window On Hatch, 04-06 Buick Rainier, 03-06 Isuzu Ascender, 02-04 Olds Bravada, 05-09 Saab 9-7x, 05-09 GMC Envoy, 02-09 Chevy Trailblazer. Will not Work on Long Wheel Base XL/EXT Models. WGS-154-1 Unlimited 3 Year Warranty Lifetime Warranty on all Components OEM Quality Replacement Individually Tested For Performance and Reliability Will Not Work On Long Wheel Base XL or EXT Models