Can you help review my product?

Im having trouble getting sales from my website and am trying to address potential problems. Do you think the idea is good enough to have mass appeal? Do you quickly understand what it is from the website? I’m thinking a video would help a lot to see the product in use. Do you trust that it will work? Any other concerns I should address? Anything about the website layout you would change? Thanks in advance! https://sanzaputty.com