This laptop is being sold for parts or repair and as is because it will spontaneously freeze and/or reboot after 10-30 min of use.

This Apple MacBook Pro 17-inch laptop is from the last year they made this popular model in 2011. It has a fast quad core Intel Core i7 processor running at a speed of 2.30 GHz. and boasts a 17-inch display with a maximum resolution of 1920 x 1200, making it perfect for work or play. With 4 GB of RAM and a 500 GB HDD (hard disk drive), this MacBook Pro comes in a silver color and features Intel HD Graphics 3000 GPU, a built-in webcam, Bluetooth, optical drive, Wi-Fi, built-in speakers, multi-touch trackpad, built-in microphone, and runs on macOS 10.13, High Sierra operating system. 

This is a used laptop that is being sold as is for parts and not working because it has some issue where it starts to glitch after running for more than 30 minutes or so. I do not know what the exact issue is, this model year is known to have graphics card issues and it could be that or something else. Also, there are some light scratches and small dents in the case, so please carefully review the pictures. Also, the battery does charge, but given the age of this laptop battery life cannot be guaranteed and is less than when new.