recently my trinity dings our doorknob then today it fell on the ground when im playing it. it has no wobbles .
how will i know if something is wrong with it ? i now its made up of metal but can it be broken by just like that ?
PS sorry im new here and im asking newbie question
BTW thanks for the replies 
You really cant break a metal yoyo. You can ding it, dent it, scratch it and other superficial damage. Aside from that the only thing you can damage is the axle, whether it be bent or stripped and thats pretty much it.
If your yoyo wobbles like mad, check the axle. Otherwise its good.
Thats just me though.
Don’t stick it in your back pocket and sit on it. That will bend the hub and a new axle won’t do anything.