Feature: 1. STAINLESS STEEL MATERIAL: Coffee machine spring modification, made of premium 304 stainless steel material, long lasting performance, rustproof, with high durability. 2. COMPATIBLE MODELS: You will receive 3 pressure springs that are compatible with for Gaggia Classic 9 Bar 8 Bar 6.5 Bar, professionally designed to ensure a perfect fit and fixation, ensuring stable use. 3. EASY TO INSTALL: Coffee machine replacement spring, easy to install, just need a 10mm wrench, screwdriver and 10 minutes of time, help to easily restore the function of the device. 4. PRESSURE MODIFICATION: Replace the original pressure spring with the premium spring. Allowing you to maintain industry standard pressure for the best coffee extraction. 5. ENHANCED TASTE: Coffee maker spring modification, the spring will reduce channeling and achieve a perfectly balanced coffee extraction, resulting in a more consistent and better tasting extraction. Specification: Item Type: Coffee Machine Spring Modification Material: Stainless Steel Replacement: For Gaggia Classic 9 Bar 8 Bar 6.5 Bar Springs Gross Weight: Approx. 6g / 0.2oz. Package List: 3 x Coffee Machine Spring Modification Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.