This nursing / teething necklace is 100% natural and eco-friendly. This is a very good alternative to traditional jewelry too. It is made with wooden beads crocheted with a 100% cotton yarn in red, green, yellow, blue and orange colors. This necklace is a cute and beautiful accessory for breastfeeding / bottle-feeding mommies. Just knot it in the back. There are no clasps. The ends are loose so just tie them around your neck. This particular design helps you to adjust the length of the necklace. The necklace is washable (hand washing and laying flat to dry).