Plastic diecast replica models, mostly WWI (biplanes), a couple of WWII types (Hawker Hurricane MkIIB and 1942 Messerschmitt Bf 109F-4… got these myself :)) and few modern ones. Few fire truck models from various eras. Most of the stuff is in 1:72 scale.
No idea if other stores have any of this stuff and I couldn't find anything in the latest catalogue.
Probably not the best diecast models in the world but for $3.99 I think these are pretty good :)
"Not suitable for children under 14 years old" - if a 14 year old is still putting things in their mouth that shouldn't be there I think I'd be concerned.