Description A reliable doorbell button replacement made of nickel-plated copper material, designed for long-lasting durability. This universal ringer button is widely compatible and features a simple, easy installation and operation process. Features - Color: As shown - Material: Nickel-plated copper - Size: 2.50 x 2.20 x 2.20 cm / 0.98 x 0.86 x 0.86 in - Compatible with most door chime systems; this wired chime button is a practical and sturdy solution - Lightweight and compact design saves space and allows for easy storage and use - Durable construction resists deformation, providing reliable performance - Universal fit replaces existing doorbell buttons with cover; installation takes only minutes - Suitable as a thoughtful gift for friends and family to enhance their home convenience Package List 4 x Doorbell Buttons