It’s the crochet pattern I designed for The Crochet for Kidney Research UK. This Kidney Granny Square will be used for blankets to be given to people who go though dialysis at home. Completed squares will also be crocheted together to make the blankets.

You can get more information in the following Ravelry group:
http://www.ravelry.com/groups/crochet-for-kidney-research-uk