Inspired by canadaduane this is a set of three holders for three sizes of bottles. I have a custom made glass cage (an aquarium missing the top in fact))). The standard wires simply don't help, so if you love your pets enough to get your own custom cage, come along and print these water bottle holders xD Suitable for LM animal farms and Midi (320 ml - M suffix model) bottles. P.S. You have to scale up 10 times (1000%) before printing.