The redeem icon is represented with a bracket on the two sides. On the inside of the bracket there will be three X's to represent the items that have been redeemed by the other person.
This Redeem icon has Android KitKat style
. If you use the icons for Android apps, we recommend using our latest Material Icons icon pack (please check our sidebar on the right). Otherwise, it's a solid icon pack that looks good in small resolutions, either on the web or in print. It's characterized by thick lines, smooth corners, and is optimized for 24x24 pixels.