Material:Genuine Real Natural Stone Beads 5-8mm (Irregular Shaped as show as picture) Hole Size: 1mm. Stone Beads are not only for Making Beading Beaded Necklaces, but can be used for Earrings, Bracelets, Yoga Bracelets ,Rings ,Anklets, Ear Cuffs, Brooches, Hair Accessories and other Jewelry Making too.