I guessing this is to measure grip strength. If so then it's higher than the average human (male: 44-55kg, females: 28-30kg)

sabitafukku said in comment #2560101:

I guessing this is to measure grip strength. If so then it's higher than the average human (male: 44-55kg, females: 28-30kg)

It's higher than any human, in general. Even elite grippers are "only" like 110~ 120kg or so.
Umas are built different

TokimekiPoporon said in comment #2610872:

It's higher than any human, in general. Even elite grippers are "only" like 110~ 120kg or so.
Umas are built different

The Captains of Crush grippers from Ironmind go even further than that. Their No. 3 goes up to 280 lbs/127 kg and they consider closing it all the way just once to be enough of an accomplishment worth certifying. But their biggest challenge is the No. 4, which is 365 lbs/165.6 kg. It might be enough to give Rice a bit of a workout, but she should still be able to claim the No. 4 certification whenever she wants without any prep time.