This refill pack is a game-changer for any summer gathering! As a result of my tests, I determined that these water balloons are easy to fill and tie off, saving time and effort for more fun in the sun. The balloons held up well during playtime and were a hit with kids and adults alike. The only downside is that the pack size is a bit small, so you may need to purchase multiple refills for larger groups. Overall, a great addition to your summer toy collection!