Variable from 2.5KG to 24KG each.
Very heavy need to be able to lift them to collect.
They can be a bit temperamental and lock up but there is a video here about how to release.
https://youtu.be/4M-ckq5JKxA
Adjustable Dumb Bells 24KG (Hp2 7)
This offer has been gifted to someone and is no longer available.