Package Includes: 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 and center caps, aligning the cap pins with the mounting holes to secure them onto the bed frame. Function: Side slat bracket covers the side and center support rails of your bed frame using two prongs that are fixed to the bed frame through pre-drilled holes, ensuring a firm hold. Wide Application: These slat caps are ideal as repair or replacement parts for metal beds, leather beds, wooden beds, day beds, bunk beds, and more. Material: Sized at 5.5 cm (2.17 inches), the slat cap is made of new high-density plastic material, strong and durable. Specifications: Material: Plastic Size: 5.5 cm (2.17 inches) Package Options: - 12 double sockets and 24 single sockets - OR 24 double sockets and 48 single sockets Note: Please allow slight variations due to manual measurement and differences in monitor displays.