This is an lifter or extender for standard size can dispenser.
These dispensers are supposed to be stackable but they don't stay connected or stable. I also noticed that if you lift the top one just 35mm, you can put a second row of cans in the bottom one and double it's capacity. So I designed and printed a couple of these standoffs to lift it and stabilize the two stacked dispensers.
These were printed in PLA with 20% infill.