Package Includes: You will receive double sockets and single sockets, wear-resistant black, suitable for fixing wooden slats on the bed frame. How to Use: Bed Slat Holders – Insert the boards into the end caps or center caps, align the cap pins with the mounting holes, and secure them to the bed frame. Function: The Side Slat Bracket attaches to the side and center support rails of your bed frame using two prongs, which are fixed in place using pre-drilled holes for secure support. Wide Application: These slat caps are ideal as repair or replacement parts for metal, leather, wooden, day, and bunk beds. Material: The slat cap is made of high-density plastic material, strong and durable. Specification: Material: Plastic Size: 5.5 cm / 2.17 inches Package Includes: Option 1: 12 Double Sockets and 24 Single Sockets Option 2: 24 Double Sockets and 48 Single Sockets Note: Please allow slight variations due to manual measurement and differences in monitor displays.