Estone&reg; 60" 600PSI A/C Charging Hose Set for Air Condition Refrigerant R12 R22 502 R134A Special high quality material of hoses for high pressure and brass made connections for durability. This set of hoses provides you safety and convenience to test, diagnose and recharge any HVAC system Suitable for almost every car. Easy to install and use. Material of the Handles: Metal Material of the hose: High quality rubber