Automatic counter: The device is a mechanically driven automatic winding counter, mainly used for accounting applications, such as general stamping and printing machines. Efficient and easy to adjust: simple counter but efficient. Easy to adjust and reset. Good construction and easy to assemble. Used for: Used for cumulative records of the number of equipment or sports machines. Specific function: Can count with the axle to move the arms by connecting it to a machine. Pull 0 with the rotary knob. High quality: High quality and very good value, excellent for meeting your practical needs. Specifications: Condition: Brand new. Material: Plastic, metal. Color: Black. Gear ratio: 1:1. Output mode: rotation. Contents: 1 meter. 1 spring. Note: The data are all manual measurements, please allow 1-3 cm error, due to the difference in light and screen, there will be some color difference, depending on the physical item received.