Select import ring. It is a no-brand item. The third photo shows it worn with a chain ring. The size is adjustable. However, over-expanding or over-tightening can cause damage, so please adjust gently. Size: Free Material: Brass (16kgp), Nickel-free processing [Discount] Discounts are available for combined purchases. Please comment before purchasing. Discounts cannot be applied after the purchase process is complete. 2 items → 100 yen off 3 items → 200 yen off [Shipping] We primarily ship via Nekoposu (with tracking). We take great care in packaging, but please check the product immediately upon receipt. We cannot accept returns or exchanges after you have left a review. *Please read our profile before purchasing.