There is a "screwless terminal block" as a terminal block that does not require connection screws.
It can be connected to the terminal block with a single touch, making wiring work better. Wiring or unwiring, just push the button and plug the wire into the insertion hole and no special tools required.
There are holes diameters that can be installed on a universal substrate, etc.
"Figure 1" shows connection guide. You can also use the button to operate it with your finger, but you can use a flathead screwdriver.
There is also a strip gauge on the side of the terminal block as a guide for the length of the line as shown in Figure 2.
This is a product for business contractors