Riseon on Instagram: "This video shows how a ring stretcher tool is used to resize a ring accurately. The ring is placed on a tapered metal mandrel that has size markings. As pressure is applied, the ring slowly expands and adjusts to the desired size. The tool applies even force around the entire ring, which helps maintain its shape and detailed design. This prevents bending or damage while resizing. The process is gradual, allowing the jeweler to control the exact amount of expansion. Ring str