Model Number: JP-100S Brand Name: SKYMEN Key Specifications/Special Features: Bench top ultrasonic cleaning machine 30L cleaning for guns and pistol.Ultrasonic cleaning machine 30L can clean all kinds of guns for hunting, sport's shooting, personal defense, security and protection.The cylinder shows remarkable residues of mixed fire combustion. And you will see heavily dark grey.First, the revolver's single components were positioned inside the basket of Skymen ultrasonic cleaner, which previously had been filled with a special detergent. Then you adjust 45℃ for cleaning 20 minutes (it is enough to remove the residues generated by the fire explosion from the stainless steel parts). At last , take out the basket and find them shiny again.