How much does this cost to the nearest dollar?

INSTALOCK Keyless Remote Entry, Installs in Seconds, No Lock to Change, Includes 2 preprogramed Key Fob remotes
SMART KEYLESS ENTRY LOCK - 100% secure home automation with the latest rolling code technology. Variable codes each time you press the remote button. TRANSFORMS YOUR OLD DEADBOLT INTO A MODERN ELECTRONIC LOCK - Provides the best door security and you can still use your existing key with our device. Comes with two pre-programmed remote controls with operational range of up to 80 feet. Remote controls have a long-lasting battery life. QUICK AND EASY INSTALLATION - Instalock attaches over your existing deadbolt on the INSIDE of your door in SECONDS! No tools are required for installation. Works on all surfaces to provide

Price is $53.00
Price: $53.38