I was using this to lock the battery of my electric assist bicycle to prevent theft. I used it for less than six months and stored it in a covered bicycle parking area, so I think it's in good condition. Please understand that this is a used item and has been stored at home! 【High Security】 Panasonic's mini U-lock is effective in preventing battery theft. The sturdy design allows for safe use. 【Convenient Accessories】 It comes with 3 keys, so you can have spare keys. It's also convenient for use by multiple users. 【Silicone Cover】 The silicone cover is used to prevent scratches and improve durability. - Brand: Panasonic - Model Number: NSAJ087 - Product Name: Mini U-lock - Features: Silicone cover - Accessories: 3 keys Thank you for viewing.