Why are Figaro chains cheap?

I'm curious to understand, why exactly are Figaro chains being priced so low in the market? Is there a specific reason behind their affordability, such as a high supply or perhaps a lack of demand? Could it be that they're using less valuable materials, or is there a strategy behind offering them at competitive prices to attract more customers? I'd appreciate any insights you can provide to help me better understand the economics behind the pricing of Figaro chains.