The SLP-O(+) scope lens protector protects objective lenses against the impact from all weather conditions. The aluminum cover can be rotated 360°, opened in any direction, and has a magnetic catch. The SLP-O fits all SWAROVSKI OPTIK rifle scopes, except all Z8i+ models. The SLP-O+ is compatible with all Z8i+ models. Select the appropriate SLP-O based on the lens diameter of your riflescope.