RING NOODLE: Ring Size Reducer | Ring Guard | Ring Size Adjuster. Size: Medium, for rings 2.5-3.5 mm wide. 3 Pack of Medium RING NOODLES for rings 2.5-3.5 mm wide Reduces ring size up to 2 sizes. Easy to use, no tools needed. Can easily be cut shorter for less size reduction. Hypoallergenic (medical grade vinyl) and comfortable due to curved shape Kind to your ring! (does not scratch gold or silver) Costs far less than a full ring sizing