Minecraft wiki entry for Piston, associated text: The 1-wide Sticky Piston TFF design is 5x1x3. It depends on the fact that a sticky piston leaves the block after extending when given a short pulse of 0.5 ticks of delay. A circuit breaker is used to give a 0.5 ticks pulse to the sticky piston. This makes the sticky piston leave the redstone block, which then provides power to the output. When powered again, the sticky piston pulls the redstone block switching the output off. It is possible to make this TFF tileable.