On clearance, was $3 apparently. $4.98 at OW, $5.25 at Big W, $4.98 at Amazon AU, $9 at Spotlight, from a quick search.
Free delivery with Onepass which is $4 for a month or free trial. Or click & collect / in store available at some stores.
Suitable for ages: 4+ years
Includes 12 coloured and 12 white chalks
Delivery stock is state dependant, in store/C&C stock is store dependant.