In order to let you have a happy shopping experience,we have done and will do as follows; 1.Products we sell are all in new condition and finished rigid inspection. 2.Pay attention to every details of products to give you a better wear experience. 2.All the Stickers made of high quality vinyl with sun protection and waterproof, can prevent splashing in daily life and bring you more waterproof performance. 3.Tips:Before using it, clean the surface where you want to use the stickers, then stick them directly on the surface. You must stick it on a smooth surface. Product Details: - Necklace material: Alloy Package includes: 20 Sticker 1 Necklace Customer Service: If you have any problem of our product, you can click “SELLER CONTACT” button in your Amazon account to email us. we would be delighted to help you and reply as soon as we can.