Sakura Petit color watercolor pan

This is a simple pan for Sakura Petit Watercolor refills. These are something that we may call a 1/3 pan size, 16 x 14 mm (a half pan is 16 x 19 mm)

Common in Japan in Tokyu hands etc...
Brought some refills, then realized all pans here are too big...

So here you go.