I've got one of those. It's made by GunVault. While the steel is heavy enough, the locking mechanism won't win much praise and it can be forced open with a screwdriver. Dillon Products sells it.
I prefer Palmer Security Products drop box which is made of 3/16" steel, has a five button simplex lock, and costs around $120. Yes, it'll hold two guns.
Vigilantibus et non dormientibus jura subveniunt