I designed this for my own use, I'm an C5 quadriplegic, so my hands and fingers are quite shittyshittybangbang, can't get grip of anythin heavy or slippery. This can be used to lift lid with your thumb.
In Finland you can buy this pre printed from HJ Visions.
I´m very thankfull of feedback and feel free to tip the designer, if you think that design is worth it.
Carton size: 1-liter
Carton measurements: x/max. 73mm y/max.73mm
Real PLA / PETG
Printed in PLA: