The Leupold Torx Head Screw Kit contains 70 Torx ring screws and 80 Torx base screws, a mixture of black and silver. Organized in a black polymer box, these Torx screws are important to keep on hand if you have and use a Leupold scope. All modern Leupold scopes utilize the new Torx-drive system, which replaced old hex-head screws, which were likely to strip. Torx screws do not strip or slip, thus ensuring secure installation of your Leupold scope. Keep this Leupold Torx Head Screw Kit and your Leupold Torx Driver on hand in case you need to make any repairs or replacements.