Sort:  

I am not sure but think it could be anything. But if you'll make it too high it would be slow to download it to others. I've taken 2048 px for the large side.

Coin Marketplace

STEEM 0.18
TRX 0.16
JST 0.029
BTC 76237.03
ETH 3033.90
USDT 1.00
SBD 2.62