The Ultra Clear Square Acrylic Outworld can be drilled in or connected to nests/tubes via vinyl tubing, the dimensions are:
9.5cm x 9.5cm x 9cm
The outworld is made of super clear, 3mm thick acrylic boards and is watertight. It has two 10mm diameter holes on two sides of the outworld where vinyl tubing can be attached.
The outworld features a large and easily removable lid with a very fine mesh to make sure that even the smallest ants cant escape. The large size of the lid also allows for easier maintenance and decoration if preferred. The square shape of these outworlds also makes things easier to organize.