The PBS33A is a yellow 12 mm round latching push button switch. This listing includes 2 pieces. It is a small push button switch with a locking action that toggles between on and off states. Key attributes Functionality: latching (lock button) action. Push once to turn on, push again to turn off. Size and mounting: 12 mm round panel mount push button switch. Color and visibility: bright yellow for easy identification and status indication. Electrical rating: 3A at 250V. Model and packaging: PBS33A, 2 pieces per pack. Material: not specified by manufacturer in the provided information. Compatibility and usage: designed for panel integration in circuits requiring an on/off control with a 12 mm round footprint and a 3A/250V rating. Performance: reliable latching action suitable for applications where a persistent on/off state is required. Applications and use cases Panel on/off control for small mainspowered devices such as lamps, fans, or compact power supplies in workshops or home setups. User input switch on control panels for hobby electronics, DIY projects, or compact equipment where a clear on/off status is needed. Enable or reset style switch on a compact test bench or enclosure for prototyping and small demonstrations. What you get 2 pieces of PBS33A yellow 12 mm round latching push button switches, rated at 3A 250V.