About this item Sound Feedback: Since the tamping force of ordinary espresso tampers is different each time, we designed a new concept of constant force tampers after repeated testing, when the pressure reaches a preset value, feedback is provided through the mechanical sound of the press rod and the tamper seat. Constant Pressure: This 51mm tamper is designed with 3 springs to maintain a constant pressure of 30 pounds without adjustment for even tamping. It has been tested with 30 pounds of constant force, which helps improve the flavor and stability of espresso coffee when extracted. We also offer a 15 pound spare spring that is perfectly suited to your tamping needs. Automatic Rebound Spring: This espresso tamper 51mm is automatically adapted to the required compaction height and maximum compaction depth up to 13mm. The use of horizontal constant pressure to prevent pressure bias, bakket and filter closely fit, tamping experience more comfortable. After tamping, the spring returns the structure to its original position. Ergonomic Handle Design: The espresso hand tamper features a round, solid wood handle that offers a comfortable grip and easy handling. Its ergonomic design ensures a more comfortable tamping experience, while the elegant combination of wood and metal adds a refined, stylish touch. After-sales Service: Whether you are a coffee lover or a professional barista, if you want to ensure the excellent quality of barista accessories and a good user experience, the MHW-3BOMBER is an excellent choice. We are always focused on creating the best coffee-drinking experience for our customers. If you have any questions or suggestions about your purchase, please let us know, we will be happy to serve you the first time.