$49 vs $30 and slightly different design (including wheel size and the Kmart ones being lockable). No doubt Ikea were first, but this is not a reason to pay a premium.
Does anyone have experience with both and can provide a pros and cons.
https://www.ikea.com/au/en/p/raskog-trolley-white-70376721/
https://www.kmart.com.au/product/3-tier-trolley/3316342
There's also https://www.ikea.com/au/en/p/nissafors-trolley-black-6040736…
I use this in the garage and it's great. Depends on your use case.