Sayjai Amigurumi (K and J Dolls) is owned by Sayjai an independent artisan and self-published author based in Cambridge. She started an Etsy shop selling original amigurumi crochet patterns: Etsy Shop in 2009.

Self-published her first paperback books and hardcover books: Amazon UK, Amazon US, Amazon FR, 

Amazon DE, Amazon ES, Amazon MX, Amazon CA, Amazin IT, Amazon IN, Amazon BR, Amazon AU, 

Amazon JP, Amazon NL, Amazon PL, Amazon SE

 The beginning of this new venture on selling her original amigurumi crochet kits and handmade amigurumi items: 

Sayjai Amigurumi, Amazon Handmade, Amazon Store, Etsy.