This super lightweight endless necklace is made of 3mm natural color "Ikecho keshi" from Lake Kasumi ga Ura, Japan. There is one 8x10mm natural blue color Japan Akoya keshi pearl stationed in the necklace. The necklace is 25" long, it slips right over the head and plays well with other necklaces/chains. ID#KDN3188/KDJ8000