Holds your bottles for you while draining! The design makes the holder removable for storage using a dovetail plate that is mounted to the body with Heavy Duty Nano style tape or and double sided adhesive you feel comfortable with. 

I have printed this at .12mm in both Matte PLA and ABS and find the PLA is totally fine but the ABS was virtually unbreakable. No supports needed. If I print one again I would use Brims or adhesive on the bed to avoid the little warping on corners that pulled up.