As described in title. All yarns compliment each other. There are 3 skeins of Berroco Inca Gold; 1 skein of Plymouth Select, 1 Skein of Nuna, and 6 skeins of Petra by Feza. Wool is common to Berroco, Plymouth, & Nuna. Nuna also has bamboo in it. Silk is common to Berroco & Nuna. Feza is a blend of cotton, viscose & nylon. Needle size 7-10.