Bicycle turbo trainer (Levenshulme M19)

This works but has some issues. It is supposed to have variable resistance but the lever for that has snapped off and making adjustments was very stuff before. May be fixable if spare parts are available but I've tended to use as is and just vary the effort with my bike's gears. Additionally, the box mentions speed and cadence sensors, which are missing. They're not essential anyway, but also possible to buy separately.