Invisible Bedrock

Invisible bedrock is an indestructible, solid block, similar to bedrock and has an appearance like the air. It does not have a texture. It is exclusive to Pocket Edition and Windows 10 Edition.

It shares many of its properties with barriers.

Inventory editing
This item obtained with the use of inventory editing apps(PocketinvEditor and Master for MCPE for example).

Natural generation
Invisible bedrock comprises the border surrounding Old worlds. It does not generate above or below the height limit, allowing the player to travel beyond it by flying over or under it, or by pillaring up and walking over it.

Usage
The purpose of invisible bedrock is to prevent the player from getting past the border of the world. It cannot be selected or broken with any tool.

Appearance
Invisible bedrock is transparent in rendering only, interacting with players and mobs as a solid block and blocking light. The player can not interact with them, breaking the block will break the block behind them as the result. Adjacent blocks are not rendered when viewed through invisible bedrock.

When seen in the inventory, it uses the texture of stone, although this fills out the inventory slot completely rather than being rendered as a cube like a normal block.

Issues
Piedra base invisible 不可視の岩盤 Невидимая коренная порода 隐形的基岩