The Airlock Dock & Stacker slide onto the lid of the PolyDryer™ Box and are held with a friction fit. The airlocks can be press fit into the dock and are also held in place with a friction fit. The Stacker version allows you to stack multiple PolyDryer™ Boxes on top of each other and the tabs on the 3D printed part make sure the boxes are aligned nicely.
The author marked this model as their own original creation.