High security The stickers protect your resources from being tampered. Permanent mark will be left on the surface of the protected item once the sticker is removed. Unique sequential number On each sticker there is a unique sequential number which helps you recognize your item easily. Compatible With Most Surfaces The stickers work well on all kinds of materials, such as paper, plastic, and steel etc. That means, they can be used as all purpose labels. Waterproof The stickers are waterproof which makes it adaptable outdoors Custom order accept The tamper-proof label will be damaged as soon as it is exposed, and it is irrecoverable to protect your belongings! Product name: Tamper proof labels Size: 1*0.6 inches(1.5*2.5cm). Materials: Disposable materials. Color: silver. Hologram, multi colors which changes depending on light and view angle Packing includes: 300 x Tamper evident stickers Features: Each sticker has a unique serial number to help you easily identify the item.