https://itemku.com/tanya-answer/article/cara-trading-item-dota-2/217108278Description:- Make sure your ID can trade or has Steam Mobile installed for 15x24 hours from activating Steam Guard or 16 days from activating Steam Guard.- Must include a trade offer link in the transaction information, how to open the link steamcommunity.com/id/me/tradeoffers/privacy >> copy the Trade URL link in the Third-Party Site section- Inventory must be set public first, how to open the link steamcommunity.com/id/me/edit/settings >> select Public in the Inventory section