Safely secures access to prevent unauthorized use or theft of personal golf carts, utility vehicles, transportation vehicles and beverage and ranger carts. Leave your cart unattended and know that it is secure. Easy to program and use. The master ID controls all multiple user access. These user IDs can easily be added, changed or deleted as necessary. Up to four additional user ID codes can be programmed and only the master user can change these codes. Only users that have an authorization ID code can operate the cart. The CART KEY is weather resistant for long life and durability and is designed to provide years of dependable service. The CART KEY fits new carts and retrofits existing carts.