Features: Convenient to use. Small size, lightweight and portable. You can quickly measure the size of the strap and the size of the watch buckle. High quality stainless steel material, durable in use, rustproof and anti-corrosion. The drawing ruler is smooth and not easy to break to ensure long time convenient usage. Specifications: Material: Stainless Steel Size: Approx. 46x80x2mm/1.81x3.15x0.08in Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Watchband Ruler