CURT 51170 Spectrum Original Equipment Style Electric Trailer Brake Controller, Proportional rings taking the place of a 202003 2 taking the place of a pin & clip Extra long 1 2" diameter pin fits all industry standard base rails Installs tight against the lip of the base rail for enhanced security Rust free aluminum housing with a durable black powder coat finish Weather resistant dust cap helps prevent internal corrosion Easy to operate including the latest models Tested for safety in accordance with SAE J684 Precisely welded for superior strength and fit Requires no drilling on most vehicles Protected by a durable black powder coat finish Equipped with an open back receiver for easy cleaning Limited lifetime warranty (one year finish The CURT Spectrum trailer brake controller provides powerful brake operation while maintaining a clean It also has automated leveling and calibration capabilities to simplify and speed up the installation process