Bests & Worsts Reviews from Amazon

So I was scared be cause I saw reviews saying" it doesn't zéro out and it's no accurate " when you zero it out I that the product was set to around 160 ish and I tried using the dial to dial it down to zero ,but it got stuck at 60 to 80 pounds. So I had a weird idea that the dial was a big circle (duh) so if it stops going one way maybe try going up till it goes past three hundred and goes back to zero so I did this, and I also thought that if it's limit is three hundred it might not move past it but so I stepped on and It went to my weight. This thing if zeroed in on zero ( which is not hard) I like ,really accurate I have some kettle bells around my house (those are a type of weight ) I had one that was 8 and one that is 20 pounds. So I thought I should put it on there and see how accurate it is and it went right to 20 and right to 8 for the kettle bells. Compared to my electric one for my electric one for the 20 pound weight said 22.34 or something like that and I was like seems accurate.but this mechanical one is really accurate so it doesn't fluctuate like one day for my electric one I will be 138 then that next day it goes up to 156 and I'm like I need to hop on a diet or something. Also this scale came with the bottom portion in metric units so it has pounds and kilograms