The display cases accommodate plastic boxes which can be ordered together or separately.
A - The large boxes are handmade acrylic with glued panels and lid. They measure 50mm and form a perfect cube when closed. Although not designed to hold liquid they should be reasonably resistant to leaks. Each comes individually wrapped.
B- The smaller version for our medium sized cases are also made by hand especially for Luciteria and form a 25mm cube when the lid is snapped into place. The inner dimensions are about 15x15x15mm, easily big enough to hold a 10mm density cube and smaller samples. They are not leak proof.
C- Our most affordable are boxes 25x25x19mm made by injection-molded styrene. In the medium case they sit flush against the surface so are more resistant to falling out if the case is tipped forward. The walls are thinner so larger samples can be stored within though, again, they are not leakproof so liquids are inadvisable.
For all of the above you can also have them custom labeled with the element name, symbol and atomic number for a small additional charge. The labels are cut from printed acetate film and held in place on the inside with a drop of mineral oil. If you choose labeled cubes please let us know in the order notes with the names of the elements you want.