This simple design is made for anyone with limited use of their hands can carry without difficulty their bags or packages. A simulation of ABS material and weighs 20 Kg which are supported on the hook (Video of the simulation) was conducted. For this reason it is recommended to make an impression with 100% filling and a horizontal orientation.
The model can be easily scaled to the desired size.
I hope this design be helpful for those with limited use of their hands.