| Marshmallow Fence|
It does not require an axe to be obtained, and so, will drop even if mined with bare hands but mining it with an axe is faster.
*Times are from unenchanted tools in seconds.
Marshmallow Fences appear to one block tall and have a hitbox height of one block, but their collision detection for mobs is 1.5 blocks tall. That means mobs cannot jump over them without a Jump Boost status effect. They are transparent to light and and have visual gaps.
Marshmallow Fences will occupy the center of a block and automatically connect to any solid block that it is placed next to it. Marshmallow Fences will not connect to wood fences or Nether Brick fences.
Marshmallow Fences have smaller hitboxes, so they will allow mobs to breathe underwater even when submerged.
When used as fuel in a Sugar furnace, a Marshmallow Fence lasts 15 seconds or 1.5 items.