Shade guide:(shade guide teeth bleaching) 1.Stylish aluminum case 2.Graved numbering 3.Easy to compare Shade guide advantage: (We accept OEM production) 1. High quality and good sevice. 2. Competitive price and Fast delivery. Teeth whitening shade guide features: For comparing teeth shades before & after bleaching 20 shades with laser engraved numbering for longer use Comes in stylish aluminum case, portable and easy to keep Easy to use, compare and clean Product display: