Material: Our doorbell cover is made of environmentally friendly transparent material. You will clearly see the indicator light of the button, indicating whether the product is working normally, and can replace the battery in time. House ID Column: Remind the postman not to ring the wrong doorbell and disturb the neighbors. Press the button easily without rubbing your fingers. 5-sided protection: waterproof, 5-sided protection on the top, left, back and right. Protruding and humanized local design. The waterproof cover is particularly suitable for winter; it can minimize the influence of snow, condensation and fog on the button. Maximum size: 11.1 x 6.35 x 5.2 cm. Weight: 42g. Suitable for most doorbells. Waterproof cover particularly suitable for winter.