We adore the way these cute 4mm Swarovski Elements Crystal cubes are like building blocks just waiting to be worked into creative jewelry designs. The holes in these cubes are about 0.8mm and will fit up to 20 gauge wire.Use our Swarovski Elements Crystal Color Chart to compare all your favorite crystal colors at a glance. See new jewelry designs weekly on our Inspiration Page and learn all your beading basics on our Beading Techniques page.