The Swarovski Elements Crystal Helix Bead is a contemporary shape with spirals of parallel facets. The hole in the 10mm size is approximately 1.3mm and will accommodate wire up to 16 gauge.Use our Swarovski Elements Crystal Color Chart to compare all your favorite crystal colors at a glance. Be sure to visit our Inspiration Page for new jewelry designs with free instructions and learn your beading basics on our Beading Techniques page.