This product is an 8-pack of red N.O. momentary SPST pushbuttons with the 301 NCE model. It has a 1/4 (6.35mm) mounting hole and is suitable for all scales. The part number is 524-301.

Using these pushbuttons is easy. Just press them when you need to activate the momentary function. Make sure to mount them in a 1/4 (6.35mm) hole. When using, avoid applying excessive force to prevent damage. To maintain them, keep them clean and dry. If they get dirty, you can use a soft cloth to gently wipe them. That's it, and you'll be able to use these pushbuttons well.