Medium to advanced skills. Knitted both in the round and back and forth. You need yarn (Viking Raggen, Worsted, 10 ply, 9 wpi. In small you need 700 gram, 1050 meters or 1170 yard. In medium you need 750 gram, 1124,7 meters or 1230 yards. In large you need 800 gram, 1250 meters or 1370 yards), needles (5mm/US 8). Three sizes: small, medium and large.