 This research paper examines the effects of different combinations of micro gels and interstitial matrices on the structure, mechanical properties, flow behavior, and printability of granular hydrogels. The authors found that the presence of interstitial matrices significantly affects the mechanical properties of granular hydrogels, while the presence of micro gels does not. Additionally, the authors observed that the presence of covalently bonded interstitial matrices results in higher stiffness than those made up of guest host interactions. Furthermore, the authors found that the presence of micro gels increases the printability of granular hydrogels. This article was authored by Victoria G. Muir, Shoshana Weintraub, Abhishek P. Dand, and others.