More pictures of buttonholer
![Structure of the GR2M model. (Source: Adapted from Bachir et al. [31];... | Download Scientific Diagram](https://i0.wp.com/www.researchgate.net/publication/351131031/figure/fig2/AS:1017627241639936@1619632649016/Structure-of-the-GR2M-model-Source-Adapted-from-Bachir-et-al-31-Rwasoka-et-al.ppm)
buttonholer
