2 x 3-stand roundhouse (dimensions: rear width 200 mm, front width 100 mm, long sides 140 mm, height approx. 50 mm) which can be converted to a 6-stand locomotive shed, or 89982 to a 9- or 12-stand locomotive shed. The cardboard kits are precisely laser-cut from high-quality architectural cardboard and can be built with standard adhesives. Also included are 6 blocking tracks for automatic stopping of the locomotives.