Niwaki have brought out their own branded versions of the classic Japanese pressed steel tool box.

They are stamped with the katakana for Niwaki.  This one is a nice light grey - almost matt silver.  There is also a bright yellow version here

This is the larger Niwaki Y-Type tool box - it is 35 cm long, 10.5cm high and 15cm wide. It is big enough to store some of your Niwaki garden tools - such as your Sentei secateurs and all of the maintenance kit you need to keep your blades sharp.

There is also a smaller T-Type.  

It's a very similar design to the Toyo Y-350 tool box which is available in multiple colours and can be found here.