The Tangle Sport Matrix Nightball Basketball provides hours of active fun, day or night. Not just a high-quality Basketball, the Nightball contains special LED lights that illuminate the ball when thrown. The faster the ball spirals through the air, the brighter the LED lights glow. Requires one non-standard battery (included). Suitable for outdoor and indoor use.Not just a high-quality basketball, the Nightball contains special LED lights that illuminate the ball when thrown The faster the ball spirals through the air, the brighter the LED lights glow. Requires one non-standard battery (included). Patented motion sensor LEDs in Nightballs are designed to last 40-50 continuous hours or approximately 150,000 pulses. Suitable for indoor and outdoor use Tangle Creations is a multi-faceted company for Tangle-related products and concepts, including electronic, inflatable, educational, and sport toys.