- Measuring Range: This metal ring mandrel measuring tool accommodates US ring sizes 2-15 (including half sizes, no quarter sizes). The accompanying ring sizer gauge covers sizes 0-13 (totaling 27 rings), and the plastic ring sizer belt spans sizes 1-17. - High-Quality Material: Crafted from lightweight aluminum, the ring sizer mandrel is easy to maneuver. The 27-piece stainless steel ring sizer gauge set ensures durability, while the plastic ring sizing tool features a clear scale for easy reading. - Easy Size Measurement: Each ring is clearly marked with full and half size increments. The rounded exterior and flat interior design with smooth edges ensure comfort during use. A convenient rotating nut allows for easy adjustment when needed. - Practical Ring Selection: Use the ring gauge to accurately determine your size or surprise a loved one with the perfect fitting ring. Ideal for weddings, anniversaries, or special occasions, this tool empowers you to select the right size effortlessly. - Versatile Applications: Whether you're purchasing a ring for yourself or gifting one to a partner, this comprehensive set makes it simple to find the right fit. Perfect for jewelers, hobbyists, or anyone looking to ensure a precise ring size. - Customer Confidence: With a focus on quality and practicality, this ring sizing tool is designed to meet your needs with reliability and ease of use.