Package Includes: You'll receive 4 brass radiator keys, small and portable, enough for your use and replacement, suitable for most radiators.Reliable Material: These radiator bleed keys are mainly made of brass, solid and sturdy, not easy to bend or break, durable and reusable for a long time; The two holes on the top make it easy to hang and store.Function: These brass radiator bleed keys are designed for taps and radiators, compact for use in tight spaces; The wide handle allows for an easy and firm grip.Wide Application: Radiator plumbing valve keys are versatile for taps and radiators, and also serve as keys for various types of valves.Dimensions: Each brass radiator bleed key has a 6 mm / 0.24 inch square as shown in the picture; Please check the size chart carefully before purchase and confirm whether this key matches your radiators.4-Pack Radiator Keys Solid Brass Radiator Bleed Key Venting Air Valve Key Clock Type Plumbing Valve Key for Radiators and TapsGreat Performance:These radiator bleed keys are mainly made of brass, solid and sturdy, durable and reusable for a long time. The wide handle ensures a firm grip even on stubborn radiators, while the two holes allow for hangingEasy key from the radiator to your keychains, backpack, etc., making it convenient to carry anywhere.Wide Compatibility:These durable radiator bleed keys work well with most radiators and valves, and can also be used as keys for various types of valves.Features:Material: mainly brassSize: as picture showsColor: as picture showsPackage includes:4 x Radiator keysWarm note:Please allow slight size error due to manual measurement.