This is the ex-Esci kit which has been out of production for many years, even though this kit presents a very good level of detail. It doesn't shows its aging, to me at least. The moulding on both sprues is very crisp with no sign of flash and only a small amount of seam lines to be cleaned up. The tracks are rubber bands, a little on the stiff side, have no detail on the in-side apart from guide teeth and a ejector pin mark about every 7 to 10 links on the out-side. The very small decal sheet has markings for 4 KV-1s. Despite some little issues, it still a very good kit overall.