When purchasing a flip-flop trunk lid conversion kit for your car, be sure to look at the way your support arms mount to your trunk lid first. In the pictures shown on the auction page, the cars’ trunk lid bolts on top of the two support arms in only one place after the conversion, because if bolted more than once along the length of the arm it could not hinge at the end, which, when your trunk is “flopped”, means that you’ve altered the factory support geometry in a way they have not intended and reduced your stability by half, meaning any damage resulting from your “simple” conversion is not covered under warranty and may cause problems with your insurance agency were you to need something fixed or replaced. The hinges supplied are very small hardware store hinges which would not be recommended for supporting anything other than lightweight cabinet doors, though they can still be used however unsafe. In cars such as the Pontiac Sunfire, for example, the trunk’s support arms mount inside the structure of the trunk lid , unlike the cars shown in the auction, which means that after wresting your heavy trunk lid off the support arms while trying not to put it through your rear window, you realize that, contrary to what you may have been led to believe, your kit cannot be installed properly as the printed intstructions and those which may be found on an accompanying CD, may have guaranteed. However, if your car is designed like those in the pictures, congratulations on your conversion, but be wary, the hinges supplied are weak and will only support so much weight for so long without bending or breaking, and when your trunk is flopped the surface area supporting the trunk is only as large as the ends of the support arms, which could lead to instability and and an unexpected slamming shut of your trunk, so be careful of bumping the car with the trunk open.