Do you have a spare standard 1650mAh battery gathering dust in your home after upgrading your SGS2 with the official 2000mAh Extended Battery Kit? This spacer will allow you to use the standard 1650mAh battery with the extended battery cover. No need to carry the standard battery cover and it should fit in most wallets along with the battery.
I have not tested this yet but will soon.
4.62 w x
6.03 d x
1.819 w x
2.374 d x