BETTER GLOWING EFFECT NO BATTERIES NEEDED - New fluorescent material is used in this glow in the dark basketball, makes the basketball more durable and achieve better glowing effect. After irradiated by sunlight or other strong light, the basketball can glow naturally without battery for over 4 hours continuously in dark. Stronger and longer sunshine will makes the basketball glows brighter and keeps longer. SPECIAL CONSTELLATION PATTERN DESIGN, COOL GIFT - This fluorescent glow in the dark basketball is a unique and cool basketball gift for basketball lovers. Different size to choose for all ages basketball players.Official size 7 (29.5") for mens ages 13 years and over. PERFECT FOR NIGHT BASKETBALL ACTIVITIES - Night ball basketball can glow in the dark with a clear bright green light, perfect for street night basketball activities. DURABLE HYGROSCOPIC PU LEATHER PROVIDE EXCELLENT HAND FEEL - Glow in the dark basketball is made with premium composite PU leather with 100% nylon windings and flexible butyl bladder to maintain a good bounciness and shape retention. Durable, wear-resistant and not easy to leak suitable for both indoor and outdoor use. Basketball also provides a nice grip that all basketball players love.