Compatibility: This bike computer holder gasket is suitable for edge 1000, edge 1030, edge 20, edge 25, edge 520, edge 810, edge 820, edge tourism, edge tourism plus, etc.Versatile Installation: The bike computer mount gasket supports various installation combinations making it a versatile accessory for your device.Premium Material: The bicycle handlebar mount washer is made from plastic material that ensures longevity and reliability.Product Dimensions: The bicycle handlebar washers have a diameter 35mm/1.38inchturn 31.8mm/1.25inchand 25.4mm/1.00inch, with thickness 15mm//0.59inch.Package Contents: Each package comes with 2 bike computer cycling stand holder gaskets, ensuring you have a spare when needed or can be used on two different devices simultaneously. Specification: Material: Plastic Size Chart: 35mm/1.38inch turn 31.8mm1.25inch35mm/1.38inch turn 25.4mm/1.00inchThickness 15mm//0.59inch Package Includes: 2Out Front Mount Gasket forBike Computer Cycling Stand Holder Note: Please allow slightly errors 1-2cm differences due to manual measurement.