To trade in Roblox Mobile, you must first have a Roblox Premium subscription. If you don’t have one, purchase it through the app.
Next, open a browser on your mobile phone and go to www.Roblox.com. Log into your Roblox account using your credentials.
Once logged in, select the Avatar Shop from the top menu. Filter the items by “Collectibles” to view tradable items.
Find the item you want to trade and locate resellers who are open to trading. Select “Trade” next to the reseller’s username and add your items and Robux as an offer.
Submit the trade, and the other player will decide whether to accept or decline. You can also trade directly with another player by visiting their profile in the Roblox app, clicking the three-dot icon, and selecting “Trade Items” if they have enabled trading in their privacy settings.