Product detail:* brand new and high quality.*Made of high-quality materials, durable and practical*Sufficient quantity, fully meet your daily work and life needs.Specifications:*Colour: Black*Tooth shape: trapezoidal tooth*Pitch: 5.08mm Circumference: 228.60mm Number of teeth: 45 teeth Belt thickness =2.30mm Tooth height =1.27mm*Model: 90XL*Quantity: 2/4/7/10Package list:2/4/7/10 beltsTips:Conversion: 1inch = 2.54cm, 1cm = 0.393inchesAll pictures are professional colors, but due to different ambient light and display device settings, there may be some deviations between the pictures you see and the project itself. Please understand.The data is manually measured, there may be some deviations, but it does not affect the useNote: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.