This Measuring Tool for is Rings. Just push one end through the buckle to form . Slide the ring gauge onto the finger. Adjust it for comfort and check that it has just slid over . When the best fit is reached, read the size indicated by the arrow. The equipped tool can provide more convenience for you when you're measuring the ring size. Features -Color:Transparent -Material:Metal -Size:10.00X0.30X0.30cm/3.93X0.12X0.12in (Spring Rope) -Size:2.00X1.00X1.00cm/0.79X0.39X0.39in (Fixing Button) -Size:11.00X1.00X1.00cm/4.32X0.39X0.39in (Measuring Rope) -Ring measuring belt with accurate and clear printing, easy to read and accurate. Fine workmanship ensures you delicate details. -Portable ring size measure tool for home DIY or jewelry shop professional use. -Ring size increments are accurately marked on each ring, easy to use and measure your ring size correctly. -With the finger gauge you will never have to look for a gauge again, which will save you of time and work. -Convenient and practical to use. It is the most suitable product to measure finger sizes. -The spring rope is durable, invisible and comfortable to touch, also lightweight, feel nothing on your ring and finger when using. Package list: 1 x spring rope 7 x fixed buttons 1 x Measuring rope