Shopping Tips This link provides different quantity options. Different selections have different quantities. If you have any questions, please contact us to confirm. We are always here to help! The button switch operation type of this product is instantaneous. Press and hold the button to turn it on, and release the button to turn it off. Each 12V momentary switch comes with an 30cm/11.8-inch cable on one side for easy concealed installation and takes up no space The back of the momentary push button switch is equipped with strong double-sided tape The product can be used in trigger response switches in automobiles, ships, industrial equipment, -equipment, homes, etc. Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!