This Coin Cell Battery Holder with Slide Switch provides reliable, easy power control for compact projects. Convenient Slide Switch: a small ON/OFF switch for simple power management, helping save battery life and preventing accidental shutdown. Designed to be compatible with LilyPad slide switch boards. Secure Battery Fit: holds standard 20 mm coin cells (such as CR2032) securely with four connection points (2 positive, 2 negative) for solid, reliable connections in sewing or electronics projects. Durable Material: made from speed steel for longlasting performance and durability under heavy use. Compact Size: measures 29 x 30 mm, lightweight and unobtrusive for easy integration and a neat finish. Use scenarios: Wearable electronics and sewing projects that require quick power control without bulky hardware. Small electronics prototypes or microcontroller projects (Arduino, LilyPad) needing a compact power switch and reliable contacts. Portable sensors or handheld gadgets that run on coin cells and benefit from a easy ON/OFF switch to extend battery life.