Wheelchair with recycled concrete

I think the current wheelchair design is not the best for people with reduced mobility, because they are not environmentally friendly (often made with materials that harm our planet!!). At the same time, we also talk a lot about global carbon emission. When combining the two, we create a recycled concrete based wheelchair. These wheelchairs protect the people with disability, and can be used for self-defense when needed.

If the wheelchair is broken or lost, it’s bio-degradable material, so no harm for the environment. I wasn’t able to implement, but I made a prototype with clay (because it’s environmentally friendly, why waste resources for just an idea right?)