Made of brass, operation confirmed on R610 oval track (see the last photo). However, this is a junk item, and running is not guaranteed. The cloverleaf is not inserted into the tender but slides and clips in. Copper wire has been wrapped to improve electrical conductivity. It stopped on a curve, so the leading truck is lifted and fixed. There are scratches and dents on the slug portion. Please judge from the photos as they were taken from all angles. The joint rubber has been replaced with silicone. No accessories, only the main body is included.