Byrna Pepper Projectiles contain a blend of Oleoresin Capsicum (OC) + PAVA making it one of the most powerful pepper projectiles on the market. Increase your confidence while keeping yourself and your family safe. FeaturesBurning in throatWheezingGaspingDry coughShortness of breathGaggingInability to breatheNote: .61 caliber is compatible with Byrna CL, .68 caliber is compatible with the Byrna SD & LE.