MADE IN THE USA!!!! Light weight only 1 ounce Deep NINJA black color RED NINJA BOTTLE ORING Easily installed Fits 3000 psi and 4500 psi Ninja regulators. ASTM COMPLIANT NOTE: Care must be taken when using an aluminum bonnet to prevent thread gauling with the markers ASA. Use a lubricant (Vaseline or DOW 33) on NINJA REG threads. Do not force the bonnet into the ASA. Install and remove the NINJA REG slowly from your markers ASA.