Features: Precision Measurement Tool: Our bicycle seat height measurement tool ensures accurate adjustments for optimal riding comfort, enhancing your cycling experience on any bike type. Quick & Easy Setup: Designed for convenience, this precision gauge allows for swift and effortless measurements, making seat adjustments a breeze for cyclists of all levels. Universal Fit Design: This versatile tool is compatible with all bike types, providing a reliable solution for anyone looking to achieve the perfect seat height for their riding style. Durable Plastic Construction: Made from good-quality plastic, our bicycle seat height marking tool is built to last, ensuring reliable performance and accurate height marking over time. Enhanced Bike Center Positioning: This tool not only marks seat height but also aids in bike center positioning, ensuring a balanced and comfortable ride for every cyclist. Specifications: Material: Plastic Height Marking Tool Size: 10*4cm Center Positioning Tool Size: 9*1.8cm Note: Due to the screen lighting effect, the actual color of the product may be slightly different. Due to manual measurement, please allow size error. Include: Choice1: 1*Measurement Tool OR Choice2: 1*Positioning Tool OR Choice3: 1* Measurement Tool 1* Positioning Tool