Bedrock (bedrock)
Item Id: 7
Item Data Value: 0
Bedrock can not be picked up or placed by the player. It marks the edges of the map and is an invincible block designed to prevent the player from falling out of the world.
Minecraft Item Ids
Minecraft Items is a complete, searchable list of all current item IDs in Minecraft. This site is actively maintained and updated with all the latest item IDs.
How to Use
/give (user) (item id) (amount) (item data value)