Field GelBlast 5.000 Balls/seeds to Refill the Field GelBlast Action Pack that will glow in the dark if charged with light. Field GelBlast 5k Balls Glow in the DARK INCLUDES: 5.000 gelball seeds, to grow with water and make gelballs ready-to-use that will GLOW in the DARK if used with the Field GelBlast Glow in the Dark Rechargeable Feedneck sold separately. CLEAN & ECO-FRIENDLY – The gelballs evaporate and dissolve after shooting, making it a clean and mess-free activity for kids and families! EASY TO USE – The included gelballs seeds should be imersed in water for aprox. 2hours before using, the Seeds will grow to full sized gelballs, then, just remove the extra water and play! – Unused gelballs should be stored in a airtight container in order to use them later.