With the SellBooksFast ABS protective enclosure, your SP2100 has the best drop and impact protection possible. The enclosure itself is made of solid ABS plastic, with a USB port access hole on the bottom. With easy access to all the buttons, the SellBooksFast ABS enclosure has a loop hole "nub" and comes with an aluminum "D" ring that you can attach to the lanyard that comes with the scanner kit. For more durability, you can purchase our "heavy duty steel reel" lanyard.