One of the areas that the 1/32nd scale Hasegawa Bf-109 kits lacks is the wheel wells. There is no lining and the detail is a little heavy. Aires now offers an option.
The Aires set includes two resin wheel well inserts and a small fret of photoetch. The parts are molded in light grey resin without any imperfections that I could see. The instructions are adequate for the job at hand.
Start the addition by deciding whether or not you want the round or squared off wheel wells. If you elect to use the squared off one, you’ll have to do it now. Then start thinning out the upper wings and the area around the wheel well opening. You will have to remove a good amount of plastic and thin out the upper wing, but nothing that a Dremel tool with sanding bit can’t fix. The process was actually quite easy. I removed some of the stiffeners in the kit wing but it wasn’t really necessary.