Natural Tourmaline Beads Strands, Black, RoundSize: about 8mm in diameter, hole: 1mm; about 24pcs/strand, 7.8 inch.Tourmaline beads, with the lustrous appearance and hard characteristic, are popular in jewelry design. Just use your imagination to create dramatic necklaces, earrings, mobile lanyards, home decoration and other event decoration. The stylish design and beautiful appearance may be your good choice.