Product details: * and high quality * Made of high-quality materials, durable and practical * Sufficient quantity to meet daily work and life needs Specifications: * Color: Black * Tooth shape: Trapezoidal tooth * Pitch: 5.08mm * Circumference: 228.60mm * Number of teeth: 45 * Belt thickness: 2.30mm * Tooth height: 1.27mm * Model: 90XL * Quantity: 2, 4, 7, or 10 Package list: * 2, 4, 7, or 10 belts Notes: * Conversion: 1 inch = 2.54 cm, 1 cm = 0.393 inches * Pictures are professionally shot for color accuracy; however, due to variations in lighting and display settings, actual colors may differ slightly from images * Measurements are taken manually and may have slight deviations, which do not affect functionality * The actual item color may vary slightly from online images due to monitor brightness and lighting conditions * Allow for minor manual measurement discrepancies