This is a large set. The set is used with some wheel wear, but nice and clean. I noticed one mark on the cab roof. The engine and tender are both constructed of plastic. The tender is very heavy because the motor unit is in the tender.
I tested this set, and it worked really nice in both directions. I didn't notice any working lights. No box or literature with this offering, just the pictured engine and tender. The B20 in the listing title refers to my inventory location. Let me know if you have any questions.