Features 1、Accurate Measurement: The bike seatpost measuring tool allows you to quickly measure the inner diameter of your seatpost, making it easier for you to choose the right seatpost. With its high accuracy, you can trust that the measurements are reliable and accurate. 2、Premium Quality: Crafted from high-quality aluminum alloy, it offers exceptional durability and resistance to wear and rust. This ensures that it will withstand the test of time and provide long-lasting performance. 3、Easy to Use: Designed for convenience, the tool is incredibly easy to use. Simply insert the gauge into the seatpost, and it will provide you with a accurate measurement in no time. No complicated instructions or additional tools required. 4、Wide Compatibility: It is suitable for seatposts ranging from 25mm to 31.8mm, offering versatility for various bike models and sizes. Whether it/u0027s a mountain bike, road bike, or any other type of bicycle, it has got you covered. 5、Value for Money: Each purchase includes one seatpost sizing measurement tool, providing nice value for money. Invest in this reliable and efficient tool to ensure a perfect fit for your seatpost, enabling a comfortable and enjoyable riding experience. Features: Accurate Measurement: The bike seatpost measuring tool allows you to quickly measure the inner diameter of your seatpost, making it easier for you to choose the right seatpost. With its high accuracy, you can trust that the measurements are reliable and accurate. Premium Quality: Crafted from high-quality aluminum alloy, it offers exceptional durability and resistance to wear and rust. This ensures that it will withstand the test of time and provide long-lasting performance. Easy to Use: Designed for convenience, the tool is incredibly easy to use. Simply insert the gauge into the seatpost, and it will provide you with a accurate measurement in no time. No complicated instructions or additional tools required. Wide Compatibility: It is suitable for seatposts ranging from 25mm to 31.8mm, offering versatility for various bike models and sizes. Whether it's a mountain bike, road bike, or any other type of bicycle, it has got you covered. Value for Money: Each purchase includes one seatpost sizing measurement tool, providing nice value for money. Invest in this reliable and efficient tool to ensure a perfect fit for your seatpost, enabling a comfortable and enjoyable riding experience. Specifications: Color: Black/Purple(optional) Material: Aluminum Alloy Applicable Size: 25-31.8mm Item Length: 90mm/ 3.5in Item Weight: 72.6g/ 2.6oz Package Size: 100 * 50 * 50mm/ 3.9 * 2.0 * 2.0in Pacakge Weight: 83g/ 2.9oz Packing List: 1 * Seatpost Measuring Tool Package List 1 * Seatpost Measuring Tool