I use the APP on iPhone they have. Called "Wallet".
There you can click Collectibles and send.
I store my collectibles in
https://www.myetherwallet.comI have eksported the private key and also use that in
https://enjin.io/products/walletI have eksported the private key and also use that in (I use firefox browser)
https://metamask.ioI sell/buy ERC721 here using metamask with the privatkey from myetherwallet
https://opensea.ioI sell/buy ERC1155 here using enjinwallet to confirm with the privatkey from myetherwallet
https://enjinx.io/eth/marketplaceTo view my stuff I use
https://opensea.io/accounts/0x0e841dee0ae230c0948784a2a1ae57880de02d04Change your public key with mine
If you play ERC721 also have a few $ eth in the wallet
If you play ERC1155 also have a few $ eth AND enj in the wallet
Sounds complicated but work so easy when set up. People say don't use same privatkey on more services. But do it. Or gas and problems kill you if you play games.