This is a water bottle holder compatible with bikes with the mounting PEMS, and with bikes without any mounting points.
This is a modification of the previous version:
This newer version has no sharp angles that tended to create weak places that would tend to break.
Try to print it low quality to get a high level of layer adhesion.
Print 3-5 shell layers.
If you have screw pems on your bike, Simply screw this holder onto them. The holes should line up well.
Otherwise, I got ahold of some 3M VHB tape and put it on the back of the part. I then wire ties it down shoving the wire ties through the channels in this part.