Medium to advanced skills. You need yarn (Manos del Uruguay Silk Blend is: DK, 8 ply, 11 wpi. You need in SZ S: 350 grams, 959 meters or 1050 yards, in M: 400 grams, 1097,3 meters or 1200 yards, in L: 450 grams, 1233 meters or 1350 yards, in XL: 500 grams, 1370 meters or 1500 yards, in XXL: 550 grams, 1507 meters or 1650 yards), needles (4 mm/US 6) and buttons. Knitted back and forth. Five sizes: small (S), medium (M), large (L), extra-large (XL) and extra-extra-large (XXL).