💖 Product Description Unisex Adjustable Black Onyx Ring set in a 925 Sterling Silver Spiral Snake design. This delicate black gemstone Sterling Silver Ring Wraps beautifully around the finger, creating a real unique, statement look. Great worn as a Delicate silver Thumb Ring for men and women. A great 7th Anniversary Gift. 💖 Product Details * 925 Sterling Silver * Handmade * Ring Height - 14mm - but can be adjusted to make longer * Weight - 2.5g * Stone Size - 5mm *. Band Width - 3mm 💖 Ring Sizing The sizes shown has the spiral sitting approximately below the spiral, and when you adjust down to a lower size, the spiral will wrap further around the finger.