very very rare optional rear lip spoiler for all 1986-1989 Acura Integra's! Item is very very rare and this is the only one I have ever found. Spoiler mounts on the rear hatch with 4 bolts and 3m tape around. Underside is rusting and splitting (as pictured) but will still be able to use as is or restore the item. Very similar to the Mugen spoilers sold for these cars at the time. This was an accessories option from Acura. Item is old and will not sit flush with just installing the 4 bolts. You will need adhesive to install it flush and properly.