Pinted out of PETG PC.
Rods are Steel 10mm Diameter 260mm but shorter should also work fine for the legs.
Magents are 3x 8mm Diameter by 5mm and 3x 5mm Diameter by 5mm.
Also check out https://www.printables.com/model/239617-bow-stand-light-weight for a slightly different variation without the magnets for stowing the legs
The author hasn't provided the model origin yet.