Show this amazing trick to your friend or play with your small child to show a magic When you move your hand over your mobile or tablet your hand will pass from your device's proximity sensor with that sensor we change that card . and your friend thinks its magic.
how to know which card will come next? when card's back is appear we provide card number at top,right corner of your screen so only you know what is that Just Pass your hand over mobile or tablet's proximity sensor be careful your friend not know this things
Now lets show your friend to this amazing card changing magical trick and have a fun ☺