Product Name: Encoder code with Switch; Adjustment : 360 Degree; Pin Numbers: 7; Rated Voltage: 5 V. Shaft Diameter: 6mm/0.24inch; Shaft Height: 20mm/0.79inch; Thread Diameter: 6.8mm/0.27inch.Shaft Movement Direction: Action Type: Momentary. Application: for industrial controls, robotics, photographic lenses, computer input devices Shaft type: Plum blossom handle colour:Black+silver Material:plastic Package Contents: 10 x EC11 Encoder with Switch and Knob Caps (20MM) Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the 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.