UNIVERSAL: These infrared heater feet are universal and fit infrared heaters with a frame of different brands and models. The electric heater can be up to 3 cm thick to fit the feet. SUPPORT DEVICE: These feet also allow you to use your infrared heater as a stationary heater and a mobile infrared heater. The feet are easily attached using screws from the rear. MOBILE: Convenient to change if you want to use your infrared heater as a mobile support. The rollers can also be pinched so that the heater cannot roll away. Wheels with non-slip rubber coating for added stability and to prevent scratches on the floor Dimensions: 20 cm long, 8.5 cm high without casters, 13 cm high with casters (total height) . It fits perfectly with infrared heaters with a maximum width of 3 cm. The feet can also be used without casters. Box contents: 2 universal feet for infrared heating, 4 casters, 2 screws, 1 key. Material: aluminum legs, plastic casters