3D model of Lacticaseibacillus casei (also known as Lactobacillus casei). Model size: 1.4 cm cell diameter; 4 cm length. A scale of 20,000× was chosen to (1) enhance visual and tactile aspects of printed-model handling and (2) enable comparison of size and shape within the mammalian microbiome, with a focus on the human microbiome.

For printing strategy details, see manuscript at https://doi.org/10.1525/abt.2021.83.3.188