We use high-quality PVC material to make this ice hockey balls that can glow in the dark.They serve as excellent backups and replacements for ice hockey pucks, street hockey, grass hockey, ice hockey, roller hockey, and other sports balls. Especially when the light is dim or in the evening, they emit green light, and the effect is even better when used immediately after being fully illuminated by strong light. They are an ideal choice for outdoor and indoor sports enthusiasts.Ideal accessory for sports enthusiasts in the evening and night, nice for practicing your shooting and puck handling skills, parent child toy balls and so on, can also be used as gifts to your friends and relatives, enhance friendship