smallest double piston extenders in both versions of Minecraft *Tutorial* - YouTube
Super small tileable double piston extender (horizontal) - Redstone Creations - Redstone Discussion and Mechanisms - Minecraft: Java Edition - Minecraft Forum - Minecraft Forum
Tutorials/Piston uses – Minecraft Wiki
1 Wide Tileable Double Piston Extender - Imgur
6 Fast and Simple Double Piston Extender Designs [Horizontal / Vertical] - YouTube
minecraft java edition minecraft redstone - Double stack of sticky piston, top wont pull? - Arqade
World's Most Compact Double, Triple and Quadruple Piston Extenders - Redstone Creations - Redstone Discussion and Mechanisms - Minecraft: Java Edition - Minecraft Forum - Minecraft Forum
Minecraft: How to make Tiny Piston Extenders - YouTube
1 wide 2 HIGH Double PISTON EXTENDER (smallest) : r/redstone
The Worlds SMALLEST Double Piston Extenders (Minecraft 1.13+) - YouTube
I made a compact double piston extender but it's not really that fast (hope no one already made this) : r/redstone