This piece is part of a set of two large slabs constructed from different varieties of triply periodic minimal surfaces.
See here for video: https://youtu.be/vKTHPB9hKvQ
Download the set: Fischer-Koch S: https://than.gs/m/868235 SplitP: https://than.gs/m/868254
The slabs are 3 x 3 x 2 cubes of unit cells, with the central top cell removed to allow placement of a square vase or other similar type of container. Three different heights of square containers are included.
The footprint of each is approximately 100mm x 100mm.