Doorbell Keys: Are you frustrated that you can’t find a replacement doorbell key when your doorbell battery dies? Don't worry, this doorbell key is compatible with Nest, Arlo, and Eufy video doorbells and doorbells. With this doorbell key replacement tool, you can easily replace your doorbell battery so your doorbell can continue to work for you. Description: Product name: 2pcs doorbell keys Color: silver Material: Stainless steel Size: Needle length: 3.8 cm/1.5 inches Width: 1.2 cm/0.47 inches Needle width: 0.07 cm/0.03 inch Thickness: 0.1 cm/0.04 inches Weight: 2.6 g/0.09 oz Packing list: 2 doorbell keyNotes: There may be some errors in size and weight due to manual measurement. Due to differences between different monitors, there may be slight color differences.