Linsoir Beads Colorful 8mm Lava Rock Essencial Oil Diffuser Beads Healing Stone Loose Beads 40cm/strand Natural multicolor lava rock beads for jewelry making bracelets&necklaces etc Material:lava stone Size:8mm round shape,hole size is about 2 mm Quantity:40cm/strand,appro.48 pcs You can drop your favorite essencial oil on lava beads for your wellbeing High quality brand goods from Linsoir Beads, nice quality and shipped by FBA