PUYA is Grass trimmer for The disabled with one-handed
There are many disabled people who do not need help, too. 
What really I want is that disabled people can use every day like normal people.
PUYA is What makes these people can cut the grass like the others

Target group of project for the disabled with one-handed

Research about the lives of the disabled arm off and ergonomic of human.

And Research about the appropriate material.