【Package List】Package includes two sling stud and two adapter for M-Rail
【Easy To Install & Remove】 Easy to push button for detaching and attaching swivel
【Super Heavy-Duty】It will hold up to years of heavy outdoor use. Quick and easy installation
【Size】The sling stud dia 10mm; total length 28mm
【Customer Service】If you have any questions or concerns, please feel free to contact us, we will try our best to help you