with 2 front mounted and 3 rear mounted magnets, this mount can hold cans to a metal surface, or you can use the holes to screw to a non-magnetic surface.
Magnets were sold as 20x10x3mm, but when I mesured them I decied to modeled holes as 9.6 x 19.2.
Caliper messurments varried at 9.46 - 9.55, x 19.05 x 2.65
https://www.amazon.com/MAGXCENE-20x10x3_50-50-Pcs-20x10x3/dp/B0D83T5FM7/?th=1
The author marked this model as their own original creation.