This is only the Expansion pack for the mini triangles. You will need a starter kit (not on sale) or existing kit to plug this into.
These are usually quite expensive for what they are (and probably still) but it's the cheapest at the moment.
Other nanoleaf on special:
The bigger triangle starter kit 9 pack $249
https://www.mwave.com.au/product/nanoleaf-shapes-triangles-s…
And Canvas Smarter kit 9 panels $285
https://www.mwave.com.au/product/nanoleaf-canvas-smarter-kit…
Could try price beat @ Officeworks or price match @ JBhifi also.
Is this the discontinued one ?