One 100 count package of Water Grenades. Bombs away! These balloons are textured to resemble hand grenades when they are filled. Fill your Water Grenades with water and let the fun begin. Water Grenades can be filled to up to 4 inches, depending on how much water is used. Kids and adults alike love to toss water balloons. Pick sides and start your battle, or simply run around the yard throwing your Water Grenades at one another. Water Grenades also make fabulous summertime treat bag stuffers. Slip a handful into each treat bag at parties this summer.