These fingerprints are designed for instructional use. These images are more crisp than a natural fingerprint so that students can see and learn fingerprint features. Includes the following: set of unlabeled instructional fingerprints, set of labeled instructional fingerprints, set of unlabeled ridge characteristics, set of labeled ridge characteristics, set of individual fingerprints with partials. These files are jpg & png files (300+ dpi). Thank you for your interest in this product. Ple