Product Name: Electric Bell Rated Voltage: AC 220V Top Diameter: 100mm / 4inch; Base Diameter: 115mm / 4.5inch Total Height: 5cm / 2inch; Material: Metal, Plastic Color: Red; Weight: 378g Metal bell and plastic base, round, designed with 2 wires.Suitable for residential building, office, factory, schools, shops, hotel, factory, public places, etc. Package Contents: 1 x Fire Alarm Bells Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.