This is a glasses chain and necklace featuring high-quality 2mm cut blue sapphire beads and 6mm aqua crystal beads with an iridescent shimmer as accents. The delicate sparkle of the aqua crystal adds an elegant touch of glamour to the blue sapphire. Aqua crystal is created by applying an aurora-like coating to the surface of quartz. It is also known as "Aurora Quartz," "Aurora Crystal," or "Flash Crystal." The shimmer of the aqua crystal is due to titanium deposition, which creates a rainbow-like iridescence, similar to a soap bubble. The cut of the beads further enhances the reflection of light, producing a soft glow. The rainbow-colored shimmer of the aqua crystal positively transforms your energy, and is also excellent for purifying negative energy and warding off evil spirits. Blue sapphire brings peace to the heart and supports the ability to focus and make sound judgments. It also symbolizes love and trust, and is often chosen for engagement and wedding rings, bringing about happy relationships. The energy of the blue sapphire is further amplified by the aqua crystal, creating a clear and gentle energy. The glasses chain is approximately 66cm long. By connecting the lobster clasp with the adjuster, it can also be used as a necklace. Thanks to you, it is also appreciated as a gift for family and loved ones. We have also received happy reports from customers who have been complimented by strangers, saying, "That's a lovely glasses chain!" Materials: Natural stones: 2mm cut blue sapphire beads, 6mm cut aqua crystal beads Size: Approximately 66cm (when used as a glasses chain) Accessories: 2 pairs of silicone rubber, adjuster (for necklace use) This item will be delivered with silver-colored metal fittings and black silicone rubber. If you wish to make any changes, please contact us in advance. Important: When attaching the silicone rubber to the frame, slide the central fitting to create some space, and carefully insert it. Be careful not to damage the rubber by rolling it and forcing it in. Please avoid dropping it on a hard floor or pulling it excessively.