Item specifics: Material: Aluminum Color : Black Weight: Approx. 60 g Size: 60*35*20mm Description: Most Innovative Design to Convert Swivel Stud into 1-Slot Picatinny Rail for Bipod Installation Provides Alternative Swivel Stud For Sling Swivel Attachment Designed for easy installation and setup By using the Swivel stud mount, easy to install Picatinny Rail mount Ring hole is more than 3mm and ring is less than 10.5mm in diameter equipment can be installed the Swivel mount Make the most of the equipment will be able to use Picatinny Rail mount Note: Before buying, please make sure your equipment rings diameter less than 10.5mm, and bipod not included Note: > The real color of the item may be slightly different from the pictures shown on website caused by many factors.such as brightness of your monitor and light brightness. > Please allow slight deviation for the measurement data. > Please allow 1-5mm error due to the hand measurement . Package Included: 1x Swivel Picatinny Mount