I opened the package but didn't use it because the size didn't fit. The white parts in the first photo are not stains, but image processing to hide the keyway. This is an unused item, a set of 4 security locks with a width of 20mm (2 centimeters) that can be opened and closed with the same key. Please check the dimensions, such as the width of the shackle, before purchasing. Keyed alike. Due to the weak yen and strong euro, it was quite expensive, so I'm sorry, but I can't offer a discount. - Brand: Master Lock - Quantity: Set of 4 - Security Level: 3/10 - Size: 20mm - Key Type: Keyed alike Mercari delivery, anonymous shipping, shipping included, free shipping, used, for post, for mailbox, please check the size of the hole, etc. Thank you for viewing.