To fit head circumference: 48/50 - 51/53 - 54/56 cm / 19”/19½“ - 20”/21” - 21½”/22”. Materials: DROPS DELIGHT from Garnstudio 100-150-150 g color no 03, blue. DROPS DOUBLE POINTED NEEDLES AND CIRCULAR NEEDLE (60 and 40 cm / 24” and 16”) size 2.5 mm/ US 1 or 2 - or size needed to get correct gauge.