20 pieces of anti-drip pad membrane for sprayer nozzle sealing, compatible with RC plant agriculture UAV drone models including 1051.Suitable for use in end boom systems, greenhouses, car washing , and poultry breeding environments.Made of EPDM rubber material with a diameter of 22mm and thickness of 1.9mm.Designed to function effectively under working pressure up to 15 kg.The package includes 20 anti-drip pads.