How to erase old backups on itune?

[vuzuuu]

Hi, I have done thrice iphone 5S backup onto my itune recently. And I found 3 backups when I tried to do a restore backup on my new iphone 6+.
I want to erase all these 3 backups on my itunes, can any kind soul please share some tips or guidelines here, thanks.

 

[speedster4005]

Please refer to this:

http://support.apple.com/kb/ht4946

 

[Slim123]

Open iTunes -> preference -> device -> select the backup n delete

 

[vuzuuu]

Thanks so much for the prompt reply. YOu guys are apple genius.

Slim123 -> I really like the way you answered, SIMPLE & STRAIGHT TO THE POINT.

Thanks.