The Tamiya Bf-109G-6 is an awesome kit. There are some areas that could use upgrading. One of those areas is the wheels.
Eduard supplies three light grey resin pieces and a mask set inside their typical blister pack. The detail is far superior to the kit offering. The one thing that you will notice is that the wheels have bulged sidewalls and flat bottoms. This is especially nice on the tail wheel which should have a distinct bulge. The bulge is not overdone and looks very convincing.
The instructions are included on a small sheet that points out exactly what needs to be done. The only thing that really needs to be done, other than remove and paint, is to drill a hole for the tail wheel strut in the appropriate tail wheel mount.
The wheels are keyed for the Tamiya kit so they will fit perfectly.
Masks are also provided to use on both the main and tail wheels. The instructions show you how to use them.