Suitable for<strong> .68 caliber</strong> outdoor and basement shooting training rubber paintball balls, they can be reused thousands of times, only need to be cleaned, dried and reused, and it is very cost-effective. <br /> You can also use it to drive away nasty animals and protect Your home, These are the best paintball training rubber balls in the market today! Compatible with Salt Self Defense Gun, and <strong>.68 cal Paintball Gun. </strong><br /> When in use, please do not shoot people or animals without protection at close range, so as not to cause hurt<br /> they not feed properly with the Tippmann cyclone feeder.<br /> <br />