Features: * Thermostatic radiator valve made of alloy and plastic. They are not easily deformed or damaged. * Radiator thermostatic valve with M30x1.5mm/1.18x0.06inch threaded connection. Please check whether this thermostatic head will fit your valve before purchasing. * The thermostatic radiator valve has 5 levels of adjustable temperature, which can be adjusted according to your own needs. 0 is to close the radiator valve. * With anti-freeze and adjustment functions, adjustment assistance can be provided * Thermoradiator valves can independently adjust the temperature of each room to maintain constant room temperature requirements without the need for external energy. * Please make sure the valve is clean before installation. When installing, make sure the valve is exposed to the air and can accurately measure room temperature. Please avoid exposure to sunlight. Specification: * Material: alloy, plastic * color: White * Thread connection size: M30x1.5mm/1.18x0.06 * Size: 9x5cm *Quantity: 4PCS Package list: 4 x thermostatic radiators Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Thermostatic radiator valve made of alloy and plastic. They are not easily deformed or damaged. Radiator thermostatic valve with M30x1.5mm/1.18x0.06inch threaded connection. Please check whether this thermostatic head will fit your valve before purchasing. The thermostatic radiator valve has 5 levels of adjustable temperature, which can be adjusted according to your own needs. 0 is to close the radiator valve. With anti-freeze and adjustment functions, adjustment assistance can be provided Thermoradiator valves can independently adjust the temperature of each room to maintain constant room temperature requirements without the need for external energy.