Set of 5 Radiator Drain Keys - Durable Zinc Alloy Drain Keys - Radiator Drain Keys for Many Radiators - Handy Drain Key for Heaters（large

QUALITY MATERIAL: The radiator key is made of solid zinc alloy, not easy to break or bend, good compatibility, durable and can be used for a long time.PACKING LIST: You will receive 5 pieces extended broadcast keys with square holes, enough quantity to meet your daily needs.PORTABLE: Each radiator key has 2 pre-drilled holes, easy to carry and store, not easy to lose.MORE HEATING PERFORMANCE HIGH: Regular ventilation improves radiator efficiency and reduces heat loss, saving on energy bills.Wide application: 5mm square opening radiator valve wrench is mainly used on faucets and radiators, it can be used as a tightening wrench for various valves.