This is a kit that contains the yarn and the pattern and crochet hook to make a granny square.  This granny square can then be used to make a bag or a cushion, or whatever you would like with it.  The kit uses 2 balls of James Brett Aurora double knit yarn (80% acrylic, 20% wool) and is machine washable at 30'C, not suitable for tumble drying.  A 4mm crochet hook is required to make this and can be purchased with the kit.