Character: 1) A Replaceable and Upgrade parts from older rubber contact type switch 2) Improve a click feel, change to polyester film with heat source, in place of dullness rubber contact 3) View of mass production is not to so excellent but the cost is in a low level 4) Easily confront face each other than variable of mechanical condition 5) Only use for one layer PCB and a low price of model For more information, please feel free to contact us!! Origin China Minimum order 5000 pcs Supply ability 2,000,000 pcs per month