Plarail Thunderbirds 6-Car Set Cars can be connected and played with. Please use for collections, children's toys, etc. Overall, there is a feeling of use, and there is yellowing. Cleaned with alcohol wipes. There are stains and scratches (see photos 6-8). There is a tilt (photo 1, the middle car on the left). I don't have batteries on hand, so I haven't been able to confirm the operation. Please refrain from purchasing if you are concerned, as it may not work even with batteries. You can play with it by moving it by hand even without batteries.