The Atosa MWSLS01 is a pack of 20 double locking sleeves designed for use with shelving units. These durable sleeves ensure secure and stable connections between shelves and posts, enhancing the overall strength and safety of your shelving system. The double locking mechanism provides added security, preventing accidental dislodging of shelves during use. Ideal for both commercial and residential applications, these sleeves are essential for maintaining an organized and efficient storage solution.