Material & Advantage: Handcrafted from real buffalo horn, this ring features high elasticity, offering a comfortable and flexible fit for various finger sizes. Meticulously crafted, each ring highlights the beauty of the horn, ensuring a unique and distinctive appearance. Elevate your style with this exquisite piece. Size & Flexibility: This ring has an inner diameter of 16.8mm. With its high elasticity, it can be easily adjusted from as small as 15.8mm to over 19mm, allowing for expansion or contraction using high temperatures (such as boiling water).