water balloons - water balloon filler - 500 Pack [7] Vibrant Colors - water balloons bulk - Party Supplies Add splashy fun to any outdoor event with a bag of 500 colorful balloons that are ideal for a water balloon fight. Smaller Size For Easy Handling and Easy to Throw. Kids Will Have a Great Time. Did your water balloons lose water overnight before your event even began? Pre-Fill Water Balloons the night before and they will still be full the next day. These latex balloons are super biodegradable - they'll dissolve like an oak leaf in your back yard. The material comes from rubber trees grown worldwide. So there's no need to worry that you're leaving the place worse off than you found it when the water settles. Multi-Color Package Includes Blue, Green, Yellow, Pink, Purple, Red and Orange. WARNING: CHOKING HAZARD  Small parts. Not for children under 3 yrs.