1-2pc MTB Road Bike Seat Height Measurement Tool BB Center Positioning Parts Saddle Position Tools Fitting Adjustment Gauge Tool

High-concerned chemical : None Origin : Mainland China MTB Road Bike Saddle Measure Tool : Bike Seat Height Measuring Tool Bicycle Seat Cushion Height Measuring To : Bicycle Seat Cushion Measurement Auxiliary Tool Origin : Mainland China Main Material : Plastic Color : Blue Seat Height MeasuringTool (Item Number : RL257) Bottom Bracket Center Positioning Tool ( : RL258) Dimensions : About 10cm (3.94in)*4cm (1.57in)*1cm (0.39in),About 3.3cm (1.30in)*3.3cm (1.30in)*1.8cm (0.71in) Net Weight : About 12.6g,About 9.4g,About 22g