Scratched striped gemstones with 7x4.3x0.5 cm and 10.2x5x1 cm can accurately evaluate jewelry sizes of various sizes.This model is suitable for both sizes.Talk about sayings and tell sayings are used for different types of gold testing to improve user convenience and accuracy Package comes with 2 test gemstones, 1 file, 2 jewelry polished cloth and 1 magnifying glass; this comprehensive package meets all necessary testing and maintenance needs and provides an integrated solution for enthusiasts The test process is simple: rub jewelry on the touchstone or use a file; use your test potion (need to be purchased separately), observe with a magnifying glass, and finally, you can gently wipe and clean your jewelry with our jewelry cloth; maximize ease of use and reduce the complexity that is usually associated with gold testing, making it suitable for beginners and experts This set features a magnifying glass with 30x magnification, ensuring detailed inspection of jewelry; this magnification allows for meticulous inspection, allowing users to identify details that may be overlooked, ensuring accurate test results are obtained every time The set is compact and easy to store and transport, both and in a professional environment; perfect for jewelers or collectors who need portability, without compromising testing capabilities, meeting different customer needs no matter where they are, Weight: 0.50596089129 Pounds, Manufacturer: beiyaiey