AL-KO T20-105.4 HDE is a complete new innovative development. The main focus during the development phase was to design an ergonomic, easy to use and highly efficient lawn tractor. Safety for the operator other people was also in consideration. Smart designed operating compartments in combination with an excellent overview of the machine makes the operator feel good. Big wheels for a smooth operation. High grass catcher capacity provides a long operating time.The part time safety distance device is a unique innovation. In the case that a person is too close to the machine, the patented device switches off the grass-cutting device.