Petra Prins Patchwork & Quilting and WonderFil® bring you this new thread collection of 60wt cotton, Efina™. Petra Prins is a Dutch fabric designer and author with an incredible eye for design. These packs provide the perfect assortment of colours to pair with her fabric collections and quilt designs and can be used for hand and machine piecing, appliqué, and fine detail machine quilting. Each pack contains a collection of 10 spools of this ultra low lint cotton thread line.