The Dawg Ballsizer is a high quality paintball sizing tool. This is one of the handiest tool you will own in paintball! Now you can quickly and easily choose the best barrel size for each batch of paintballs. The Dawg Ballsizer will gage the size and roundness of each paintball! The Dawg Ballsizer In Manufactured From Precision Lasercut Stainless Steel, Overmolded With A Soft Rubber-Like Casing!