Petra Prins Efina Thread Pack, Promenade was created in collaboration with Petra Prins. It features 10 spools, 164 yards (150 meters) each, of Efina 60wt 2 ply 100% Egyptian Cotton, which was developed for hand cotton appliqué and is also ideal for hand and machine piecing and fine detail machine piecing. This thread pack includes EF06 Charcoal, EF58 Lavender, EF56 Crystal Blue, EF17 Blue Spruce, EF16 Pine Needle, EF29 Saddle, EF46 Mango, EF47 Pumpkin, EF23 Flamingo, and EF43 Dark Cerise.