Ew Kogan.
But surprisingly decent price for the 2 x 40kg Fortis adjustable dummbell set.
I have the 2 x 24kg set and found them to be actually pretty decent and fit nicely in my humble little garage gym. Outgrown the 24's for a while now, and for at least the last 6 months of watching the price the 2 x 40's only ever dropped down to about $330 + shipping.
Shipping varies and is a bit of a killer (but I mean you need to consider its literally shipping 80+kg) but from what I've checked:
$180.99 TO 4000
$147.99 to 3000 / 2000
Supports weights of 5kg - 40kg in increments.
While this is a killer price on these (and you’d struggle to get used ones for much cheaper), it’s worth pointing out that these have plastic internals and can/will break if you drop them - which is specifically excluded by the warranty.
Obviously ymmv and everyone has their own budget, but if you are pressing forties it is probably worth spending a bit more on something safe and bulletproof, or just accepting the hassle of spinlocks/oly handles.