Lansberry’s Ridge Builder is a unique solution that will bring excellent definition and clarity to fingerprint ridge structures. Lansberry’s Ridge Builder is applied to the finger bulbs before fingerprinting—making it possible to obtain legible fingerprints from brick masons, agricultural workers, the elderly, or anyone else who has poor fingerprint ridge structure. This product will help increase the number of successful latent print searches and subsequent comparisons by ensuring better initial fingerprint recordings. Available in two forms, the LRB20 is a 4 fluid ounce jar. Apply the liquid Lansberry's Ridge Builder with a cotton swab or wipe disposable pad on fingers before fingerprinting.