I'm selling this item, which I bought used a while ago and haven't used recently. There are a few reasons why it's a "defective" item, so I'll explain: ① Although it does run, the gears may be broken, as it's a bit clunky. ② The coupler on the lead car comes off very easily. ③ The battery compartment lid on the lead car won't close. ④ The rubber on the wheels has deteriorated, but I wasn't confident in my ability to remove it, so I left it as is. Please understand the above before purchasing. Despite its condition, this Plarail model of the Keihan 3000 series is rare these days, so how about it?