This ring size adjuster is designed for loose rings, it is easy to wear and make an over-sized ring fit perfectly Materials: PU Material, Soft & Comfortable Size: 2mm round, 4mm round, 3mm flat, 4mm flat Length: 10cm/4 inch Color: Transparent Package: 2mm round ring size adjuster 1 pieces 4mm round ring size adjuster 1 pieces 3mm flat ring size adjuster 1 pieces 5mm flat ring size adjuster 1 pieces.
eBay