Hat height 8” (20cm)Circumference 21” (53cm) to 23” (59cm)Materials neededUSA Bulky yarn or UK Chunky yarn or AU 12ply75g / 2 ½ oz40cm/16” circular 5mm40cm/16” circular 6mmSet of 4 double pointed 6mmI bought a bobble, but you can make one if you want, or just not put one on