I purchased this teeth whitening shade guide on Amazon to track my whitening treatments, and it’s been incredibly helpful. The guide features a wide range of shades, making it easy to compare before and after results accurately.The numbers and colors are clearly labeled, which helps track even subtle improvements in tooth color. It’s made from durable material and easy to clean, so I know it will last through multiple uses. The compact size also makes it convenient to store or bring along for mobile whitening appointments.Pros: • Wide range of shades for accurate tracking • Clear numbering for easy progress comparison • Durable, easy-to-clean material • Compact and lightweightCons: • No instructions included, but it’s straightforward to useOverall: This shade guide is a must-have for dental professionals or anyone whitening their teeth at home. It’s affordable, reliable, and helps you see your progress with confidence. Highly recommend!