This listing is for 10 packs of IBM Lenovo ThinkPad T60 T61 T400 T410 T420 T500 hard drive rubber rails. There are 2 rubber rails per pack for a total of 20 rails. Its IBM part number is 41V9756. These are used for a variety of IBM Lenovo Thinkpads. These rails are new and have never been used. They are being sold as pictured and do not include any additional parts or accessories.