ITEM NAME:Metal, plastic, alarm Electric bell AC 220V Z7B1 Metal, plastic, alarm Electric bell AC 220V Z7B1 Product Name: Electric Bell; Rated voltage: AC 220V Total height: 54 mm Mounting holes Diameter: 6.6 mm Diameter above: 100 mm Base diameter: 127 mm Weight: 324 g; Material: metal, plastic; Color: silver tone, black Note: Random color, do not accept the specified color. Package Contents: 1 x Electric Bell Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.