![upgrade](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
SURDOCA -- Upgrade a new generation every 6 months
In order to ensure product quality, our designers will upgrade each product every six months, replace better materials, adopt more durable processes, increase the use capacity, provide different colour choices, and replace brand new packaging. Yes, in order to provide you with better products, these are what we have been doing for a long time, which is why we can win multiple Amazon-Choice and customers love.