Features: Discover the coffee spring kit for precise pressure adjustment and improveds brewing results. Crafted with quality metal material, these replacement springs ensure stability and consistency in coffee making process. Suitable for both coffee enthusiasts and professionals, this user friendly kit offer personalized control for a customized brewing experience. From home use to commercial settings, enjoy performances and enhanceds flavor extraction with this spring modification kit. Elevates coffee game with the coffee spring kit. Unlocking the full potential of coffee machine and savors the rich flavor in every cup. Specifications: Material: Metal Size: As Picture Shows Package Includes: 1x 5/6 Bar Spring 1x 8 Bar Spring 1x 9 Bar Spring note: Please allow 1-2cm errors due to manual measurement. Please make sure you donot mind before order. Due to the differences between different monitors, the picture may not reflect the actual color from the item.