Product Information Built-in Dual Spring Structure: Equipped with a pressure-based spring mechanism to ensure stable pressure output and prevent tilting.Features a level and consistent design, making tamping easy for beginners. Spring Reset Function: After tamping, the spring resets automatically using rebound force, ensuring smooth and continuous operation.Leveling Support Spring: Designed for automatic reset to prevent tilting during tamping, ensuring a flat and even coffee bed. Spring-Activated and Automatic Rebound: The spring compresses during tamping and rebounds automatically when released, enhancing user convenience. Precise Tamping Depth: The tamping depth is approximately 23mm, suitable for a variety of coffee-making needs. Product Specification Brand MHW-3BOMBER Specification 45.5 mm / 53.35 mm / 58.35 mm Name CD Series Tamper Material SUS304, Aluminum Alloy, Walnut Wood Weight Tamper Weight: 320g, 330g, 365g