Total length: approximately 69 cm. This is a lapis lazuli and black onyx eyeglass chain. Removing the rubber ends allows it to be used as a mask strap. Stone size: approximately 4 mm. Please avoid getting it wet or pulling it strongly. Beads may have original indentations, cracks, inclusions, etc. Available for immediate purchase. #mero handmade mask chain glass cord mask cord eyeglass chain men's women's unisex genderless ★Eyeglasses and photography props are not included (for image/photography purposes).