Thank you for viewing! Two trains can run simultaneously, and with the linked specification, up to four trains can run at the same time (^^) Your children are sure to love it!! Perfect for a Plarail debut or for expanding your layout, and for those who want a lot at a low price. It's more economical than buying new. There are some scratches and dirt, but they have been disinfected. The following is a set of 16 pieces in total. Straight rails: 8 Double-track curved rails: 8 〇 Trains are not included. They are shown for reference. 〇 Please refrain from purchasing if you are looking for a perfect product or are sensitive to minor imperfections, as these are used items. 【About Shipping and Packaging】 ・Free shipping / Anonymous shipping / Simple packaging / Delivered to your mailbox