This control is ergonomically designed, water resistant and provides a positive "click" when the trim tabs are engaged. Its lock-out feature prevents user from pressing down on opposite directions at the same time. The control is easy to install, fitting into a single 2 1/2" hole. As an option if you want to have tracking until your door you can: 1) Choose USPS Priority, 2) choose REGISTERED SERVICE. Registered service lock your package in a locked container, can be traceable until delivery and provide delivery confirmation. If you do not choose a service with tracking information and the package get lost or delay is your responsibility. We are responsible to deliver to USPS and to prove that USPS received and that the USPS website shows in the tracking page that the package was receipt a.
eBay