My child enjoyed playing with these. Although there are some missing or damaged parts, they can still be assembled and played with as LEGOs. For 8958, the orange part in the front moves back and forth in conjunction with the caterpillar tracks, and for 8960, the drill in the front moves in conjunction with the wheels. The instruction manuals are tattered, but the contents are easy to understand and you can build everything. The damaged parts are marked with red circles in the photos. Please check them. The box is not included. This is a set sale of 8958 and 8960. Please purchase with the understanding that these are used items.