MOJACK Provides better care and fewer repairs for your riding mower. Maintenance on any riding mower or small tractor can become a tedious task with debris, dull blades and broken belts. Regular upkeep and service requires access to the undercarriage to keep your blades running smoothly. The MOJACK provides a safe, efficient and reliable way to lift your riding mower or small tractor, giving you full access to simpler maintenance at an affordable price.