For Skeins up to 8.5 ft in Circumference This Large size yarn swift is made of solid wood and finished by extra fine sanding (no toxic varnish fume). The Large size can hold skeins up to 8.5-ft in circumference. It spins smoothly and makes yarn winding a fun job. The clamp-on base allows it to be firmly fixed at the edges of tables, chairs, benches, or any other convenient locations. It fits edges up to 1 3/4 Inch thick.