Blue 4-Ball Tennis Ball Pressurizer Airtight O-Ring 0-14PSI Precision Pressure Gauge Portable Padel Accessories Maintain Tennis

1.This blue 4-ball tennis pressurizer tank features clear precision PSI scale ranging from 8 to 14 PSI, allowing you to accurately adjust and lock ideal internal pressure. Equipped with an extra silicone sealing ring for fully airtight storage, it effectively prevents elasticity loss of tennis and padel balls, reviving soft dead balls and greatly extending their service life to save your frequent expense on new balls.2.Compact lightweight portable design weighs only 370g with dimensions 29.5×8.5cm, slim enough to fit effortlessly into tennis bags, padel backpacks and gym duffels without taking extra space. The vertical anti-slip groove surface enables easy twist-and-press sealing operation, holding up to 4 balls at once, perfectly suitable for daily training, matches and professional coaching sessions.3.Durable solid ABS construction delivers shock and wear resistance for long-term repeated use, serving as universal practical padel accessories compatible with standard tennis and padel balls. By restoring low-pressure balls instead of discarding them, it reduces plastic waste to realize eco-friendly sports, a must-have court gear for amateur players and professional athletes.Step1: Internal pressure causes resistance on first opening.Step2: Spring back while twisting — this is normal.Step3: Pull firmly. Normal strength works.