عربة فحص المسار Micro-Mark، مقياس HO

My layout had a few mystery derailments I couldn't spot from above, but this inspection car found the tiny dip at a rail joint immediately. The clear floor gives a satisfying view of the wheel flanges riding through switches.

Assembled it in about fifteen minutes while watching TV, and the view through that clear floor is exactly what I needed to spot a subtle dip on my main loop I'd been chasing for weeks. The trucks roll smoothly right out of the box, too.

The crystal-clear floor is a game-changer—I can finally see exactly where my wheels are lifting on those tricky S-curves. Assembly took me maybe twenty minutes with the included hardware, and it rolls smoothly through turnouts without any drama.