This ring is approximately size 11 (Japanese size) and is not adjustable. I bought it online because it's cute, but it's a bit too cute for me, so I'm selling it to someone who would suit it better. I purchased it for 7600 yen and have used it about twice. It has been polished with a cloth. Material: Ring part: Alloy with plating coating Stone part: Zirconia Size: F This ring features a stylish cross design. The sparkle of the cubic zirconia beautifully accentuates your fingers, giving a simple yet sophisticated impression. You can enjoy layering it to create a stylish look with a strong presence on your hands.