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Luminous golf balls Glow in the dark sports ball The glow in the dark (luminescent) sports-ball products are the new developed products which have the inventive patent. They are made from the luminescent powder which is non-radioactive, non-toxic and environmental-protective material. After absorbing the natural light or lamplight about 10-20 minutes, the ball can glow in the dark for about 10 hours and repeat this courses for many years.
