I have just add a new apps name "Carousell" into my mobile phone. It is a online shopping app based in Singapore. So you can buy or sell things in Singapore whether used or unused things!
I find it quite convenient and easy to use. You can list the items that you want to sell very easily.
I have just open an account with Carousell and listed some items to sell. They have actually created a nice little web page for my items that I am selling. You may be interested to check it out. Please find below the little web page they have created for my items.
http://carou.sl/p/6906515
http://carou.sl/p/6906919
http://carou.sl/p/6904925
Have a nice day!