Bike Seat Calibrator Bike Tool Seat Center Adjuster Measurement Tool Bike Handlebar Laser Aligner Tire Saddle Aligning Indicator Bicycle Handlebar Saddle Calibration Device USB Charging Bike Handlebar Saddle Calibrator 180mAh Bicycle Maintenance Accessories Features: 1.Precision Alignment: Effortlessly mount the bicycle handlebar saddle positioner at the center of the handlebars; when the light aligns with the tire's center, you've achieved the perfect adjustment. 2.Versatile Use: Designed for multi-purpose adjustments, this bicycle calibrator is your go-to for aligning handlebars, saddles, and more, ensuring your bike is set up for optimal performance. 3.Durable Construction: Built to last, this bicycle handlebar saddle calibration device withstands the rigors of regular use, providing a reliable solution for maintaining your bike's alignment over time. 4.USB-C Charging: Conveniently rechargeable via a USB Type C connection, this bike handlebar saddle calibrator ensures you're always ready for quick and easy bike adjustments without the hassle of disposable batteries. 5.Effortless Setup: Say goodbye to the guesswork and strain of aligning saddles and handlebars by eye; this handlebar saddle positioner simplifies the process, ensuring a straight and comfortable ride every time. Specification: Origin: Mainland China Main Material: ABS Color: Black Size: Approx. 11cm (4.33in)*7.6cm (2.99in)*5cm (1.97in) Gross Weight: Approx. 125g Charging Type: Type-C Battery Type: Built-In Polymer 180mAh Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you Please allow 1-2cm measuring deviation due to manual measurement. 1*Bicycle Handlebar Saddle Positioner