Here is another one … price dropped from $34.95 to $19 as per Pricehipster.
Seems to be very good product for Kitchen. 4.6/5 ratings at Amazon & 5/5 Ratings @ Lakeland
Adapt-A-Shelf Large stand fits cupboards up to 83cm wide and is smart enough to use as worktop storage too - it creates instant shelving for your kitchen, making full use of vertical space. 22cm D. x 14cm H. Extends from 44cm to 83cm W.
One more product with good ratings 4.3/5 @ Amazon:
This smart Corner Plate Rack helps organise plates and save space in cupboards. It holds plates up to 33cm Dia and doesn't need to be assembled.
What's the difference between these ones and those sold at Kmart for a lot less?
Small $6: http://www.kmart.com.au/product/chrome-extendable-shelf-smal…
Large $8: http://www.kmart.com.au/product/chrome-extendable-shelf-larg…
I bought the large a few weeks ago from Kmart to use in the kitchen and its been fine with some decent weight on it.