Overall length of 6.96 inches, a height of 4.8 inches, and a width of 1.27 inches.
I liked mine so well, I got one in desert sand for my Hunny, a dozen mags and 1,000 rounds in an ammo case. That was 7 years ago, before the current situation. BTW, 13 round Glock 21 mags work fine in a 30.