I never used this after purchasing it. I'm selling it to someone who needs it. Panasonic U-Lock Bicycle Black Inner diameter 76 x 128mm SAJ080 A U-lock covered with a silicone cover that prevents scratches on the bicycle frame. The double dimple key design is also effective in preventing tampering. Three keys are included, so you can rest assured that you have spares or can share them with family. Because of the thickness, it will be simply packaged in a plastic bag. This is a used item, so please understand that there may be minor scratches and dirt.