Thank you for viewing. This is a set of 6 Marklin HO gauge M rails 5200 (tested for conductivity & cleaned). These are rare 5200 rails with a large radius. These 6 pieces make a half-circle. I personally think they are in good condition. As a test, I checked the conductivity of each rail with a DMM (digital multimeter) and ran several types of rolling stock on them. The rails have also been cleaned with TORIX liquid rail cleaner from Germany. All the rolling stock ran smoothly, making the characteristic metallic sound of M rails. Reverse operation was also smooth. I tested several track configurations to check for any non-conducting sections. No particular problems were found. However, it is impossible to test all possible configurations. Since these are quite old, please understand that depending on the compatibility of the connecting rails, there may be variations in the connection of the joints or uneven conductivity. The reason the item condition is listed as "slightly scratched or dirty" is because they are quite old, and I am assuming there is some aging. There is no original box. I have tested and confirmed that they are usable, but they are quite old products that are already discontinued. Please understand this point and purchase with no returns or exchanges. Please note that products from different manufacturing years may be mixed. They will be shipped anonymously via "Yu-Yu Mercari Delivery". TORIX HO Type...Tracks Rail Gauge...HO Gauge Series...Other Type...AC/AC-DC Vehicle Type...Rail Type...Rail Vehicle Type...Rail/Rail Option Type...Rail Set