Intriguing SAVAS Protein Drink Shaker

What makes a product that priced only at ¥425 to have more than 10,000 positive rating on Amazon.jp? https://anchor.fm/quynh-trang-ho-t That's the question that I'm very dumbfounded by at the moment, especially because I'm not the ideal type of customers who would buy a piece of plastic bottle with slightly tighter lid just to have milk…