DS213 black round button switch is a compact, momentary push button with selfreset action and no locking mechanism. It is designed for small 10MM openings and is supplied as a single piece. Key features Model: DS213 Color: black Type: round push button switch Action: selfreset momentary Locking: no lock Opening size: 10MM Design note: small key hole style opening Quantity: 1 piece Suitable applications: panels or enclosures that require a momentary push button with a 10MM opening Specifications and attributes Functionality: momentary selfreset operation for simple on off signaling Compatibility: suitable for projects and equipment that use a 10MM opening for a round button switch Size: 10MM opening diameter Appearance: black round button Performance: selfreset action provides immediate to its resting state after actuation Use cases Control panels for equipment or machinery that use a momentary input DIY electronics projects such as Arduino or Raspberry Pi projects requiring a small momentary switch Replacement for a worn or non functioning button in enclosures or cabinets that use a 10MM round push button Notes This listing is for a single DS213 unit Material specifications are not provided in the listing; only the described features and dimensions are indicated Verified compatibility depends on matching the 10MM opening and the momentary selfreset functionality of the DS213 model