This is a single 12 mm small push red button switch with self locking fixed latching and a large ball head, designed for doorbell and access control applications. Its compact profile fits tight panels while delivering a clear push action and a latched on state. Key Benefits Compact 12 mm size for easy mounting in tight panels and enclosures Self locking fixed latching provides a defined on state after actuation Large ball head offers tactile feedback and easy operation Distinct red button enhances visibility for security and access control tasks Simple mounting and wiring enables quick installation Key Attributes Size: 12 mm Type: push button switch Operation: self locking fixed latching Head: big ball head Color: red Quantity: 1 piece Applications: doorbell, access control Mounting: fixed Compatibility: suitable for 12 mm push button installations and standard wiring in access control systems Materials: not specified in listing Performance: reliable latching actuation for consistent operation Applications and Use Cases Doorbell button for entry systems requiring a latched push input Access control panel input to trigger a door release or security sequence Entry kiosks or gate control stations where a clearly visible, latched push button is preferred Notes This description reflects the product's stated features: 1 piece, 12 mm size, red color, push button switch with self locking fixed latching and a big ball head, intended for doorbell and access control use.