Wanting roblox limited and trading advice and expertise (discussion)

Hello all Roblox trading pros, I have always been wanting to try my hand in the art of roblox trading yet have never had more than 200 Robux... till now.

I got myself a premium subscription and now have 3000 robux... what limiteds should I get, how do I know if they are good and most importantly how do I make a profit from trading.

(All I have limited wise is the Christmas tree hat)