Product Details:* 100% brand new and high quality.* Made of high quality materials, durable and practical* Enough quantity, fully meet your daily work and life needs. Technical data:* Color: black* Tooth shape: trapezoidal tooth* Pitch: 5.08mm circumference: 228.60mm number of teeth: 45 teeth belt thickness = 2.30mm tooth height = 1.27mm width = 10mm* Model: 90XL* Quantity: 2/4 Package list: 2/4 lanes Tips: Conversion: 1 inch = 2.54cm, 1cm = 0.393 inch All photos are professional colors, but due to different ambient light and display device settings, there may be some deviations between the photos you see and the project itself . Please understand. The data is measured manually, there may be some deviations, but it does not affect the US Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.