Rathburn Ring Stretcher is a premium quality tool designed to help jewelers stretch rings with ease. This ring stretcher comes with a mandrel that has 6 steps with a 0.25" distance, making it perfect for resizing rings without causing any damage. Additionally, the mandrel features an 8-slot universal pressure system, which provides uniform pressure on the ring while stretching it. The nylon base of the ring stretcher measures 1.25" in diameter and 1.25" in height. It makes for a total 6.5" in length when attached to the item, making it a sturdy and reliable tool for ring stretching. The tapered mandrel of the Bench Wizard Rathburn Ring Stretcher is 5" long and tapers to a 0.5" top, which allows for precise stretching of rings. The mandrels are constructed with chrome vanadium steel, which is known for its durability and strength, ensuring that this ring stretcher will last for years. It is important to note that this tool is only suitable for ring stretching and should not be used for stone setting rings. Whether you're a professional jeweler or a hobbyist, the Bench Wizard Rathburn Ring Stretcher is an essential tool for resizing rings. Its high-quality construction and easy-to-use design make it a must-have tool for anyone who works with rings. This ring stretcher is ideal for anyone looking to stretch their rings without damaging them and is perfect for resizing rings to fit the customer's needs.