Part of the OnTyte Magnetic Stirrup System. The stirrup house the magnet while the sole of your boots contains the integrated plates. The magnetic pull holds your foot securely in the iron, eliminating not only lost stirrups, but also unnecessary foot adjustments.
 

OnTyte Magnetic Stirrups are plastic polymer stirrups that are twice the strength of other plastic stirrups, while still maintaining the look, feel and functionality of a standard stirrup.