<br><br>With bright colors, you can find it at a glance.Easy to be found and you can reuse it many times. <br>The ammo is a good balance between light and heavy,so its really safe and easy to use. <br>A good tool for children to exercise. <br>For all age, no matter you are an adult or child. <br>10 mm diameter,500 pieces in a package.More cheaper. <br>Do not use to hurt human. <br>Keep away from your baby and do not eat it. <br><br>