A button is a switch. Like levers, pressure plates, and tripwire hooks, it sends a redstone signal to adjacent blocks when pressed. However, a button can only be activated by being pressed and will only stay pressed for a short duration. After this, the charge to the object will be lost and the button will pop out, ready to be clicked again. However, with the creation of a T Flip-flop redstone circuit, it can be used as a lever substitute. Unlike levers and torches, a button can only be placed on the side of a block.