Rewardszz works like a small retail outlet for video creators. 
Video creators having many followers can sell their video clips (stock footages) by using Rewardszz. 
Rewardszz creates its own "sales item" page that has a unique URL. They can use this URL as a shop attached to them. 

At Rewardszz, video creators can sell their video clips in the price range of USD10 - USD100. 

Firstly, they display "sales item" page URL on their SNS account profile. 
Secondly, they communicate with the buyer in "Trading Chat" page on how to transfer the video file.