The pattern is for 18” or American Girl dolls. The adorable hat fits easily over the doll’s head. The pattern uses a size G (4.25 mm) crochet hook, and worsted weight yarn. The pattern also calls for a large button to secure the adorable interchangeable flowers onto the hat. Make flowers in several different coordinating colors to give the hat a different look. This is a great opportunity to use your creativity. The pattern is very easy and great for beginners and more experienced crocheters alike. The pattern uses a couple of easy stitches. If you can work a single crochet and a double crochet you can quickly and easily make this adorable hat!