Graphviz, changing the size of edge

I wanted to supplement shuvalov's answer. penwidth is indeed the correct command. Additionally, in shuvalov's answer penwidth is both a node and an edge property--also correct. The distinction i wanted to make: penwidth, when used as a node property (e.g., "NodeA" [penwidth = 5]) affects the border line weight for that node penwidth, when used as a edge property affects the line weight of the edge

[takechanman_z]

“penwidth”