Answer:
It's in your hand though you can not feel it. Only you and time can reveal it.
I am an object which is used in baseball during the day I can't be seen at all
I belong to you but others use me more often than you do. What am I?
I am a key that is playful. What am I?
Forward I am heavy backward I am not. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?