The design of this series is based on air bubbles rising in water. The Japanese word “Buku Buku” is the sound that is associated with this movement. A soft texture has been applied to the surface, creating a warm feeling. The necklace comprises various “bubble” parts and a chain. Length: approximately 41cm The piece can be made longer or shorter upon request. Material: Britannia Silver 958 This piece is crafted in Britannia Silver 958, a high purity silver which retains its bright color (unlike sterling silver which tarnishes easily). We also provide a small zip lock bag in which we recommend to store your piece/s to keep them away from the air. This will help to keep them bright for a long time. We can also make this piece in 23K Gold Vermeil (23K Gold Plated Britannia Silver 958) upon request. The price will be approximately 25% higher, and will take 3-4 weeks depending on availability. Please convo me for a more accurate quote if interested. ------------ We are a husband-wife, husband's-parents, and two-production-staff team. We make fun handmade, original pieces for fun people. Come visit our store if you're in lovely Tokyo. Thank you for looking!