A measuring tool to check horizontalness when fitting the saddle or handle bars in proper.
Horizontalness in a wide face can be seen using with a ruler and such.
Sensitivity: 0.5mm/m(=0.03°)
Accuracy: ±2.5mm/m(=up to 0.14°)
Dimensions: 75(W) x 25(H) x 15(D)mm
Weight: 31g