1.Scientific Measurement for Optimal Riding: With the road bike saddle measure tool, quickly and precisely find your ideal seat height, enhancing comfort and riding efficiency. 2.Easy-to-Read Scale: Equipped with clear markings, the bike seat height measuring tool makes reading measurements effortless, minimizing vision-related errors. 3.Quick Adjustments: The bicycle seat cushion height measuring tool allows for swift seat height changes, saving time and increasing riding flexibility. 4.Injury Prevention Aid: With proper seat height setting using this bicycle seat cushion measurement auxiliary tool, reduce injury risks from improper posture. 5.Versatile Compatibility: This bike saddle positioning tools suits various saddles, meeting the needs of both road and mountain bikes. Color: blue Material: plastic Specifications: B Package Contents: 1 x BB Center Positioning Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store