I am selling a spare full metal kit for my wltoys and Hitec Explorer 124017. I have opened the kit to check for any issues. It has not been run, and it looks to be in good condition. Everything is made of metal and looks realistic. The differential case is also made of aluminum. The gears are made of sturdy steel. My full metal 124017, which I own, has not had any problems yet. However, medium-strength thread locker is recommended for the screws. *This is a new product, but it is a metal part made overseas, so there may be defects or minor maintenance required. Please do not purchase if you do not understand this. Compatible models (The following is quoted from the purchase site. Please check for compatibility.) wltoys 1/12 radio control car 124016 124017 124018 124019 Search words Tamiya Yokomo Doripake TT-01 TT-02 YD-2