Block Documentation - minecraft:selection_box

minecraft:selection_box is a Boolean or JSON Object component that defines the area of the block that is selected by the player's cursor. If set to true, default values are used. If set to false, this block is not selectable by the player's cursor. If this component is omitted, default values are used.

Default Value of the Component

This component can be specified as a Boolean. If this component is omitted, the default value for this component is true, which will give your block the default values for its parameters (a selection box the size/shape of a regular block). Parameters

Parameters

Name	Type	Default Value	Description
origin	Vector [a, b, c]	[-8.0, 0.0, -8.0]	Minimal position of the bounds of the selection box. "origin" is specified as [x, y, z] and must be in the range (-8, 0, -8) to (8, 16, 8), inclusive.
size	Vector [a, b, c]	[16.0, 16.0, 16.0]	Size of each side of the selection box. Size is specified as [x, y, z]. "origin" + "size" must be in the range (-8, 0, -8) to (8, 16, 8), inclusive.

Example (Boolean)

"minecraft:selection_box": true

Example (JSON Object)

"minecraft:selection_box": {
     "origin": [-8.0, 0.0, -8.0],
     "size": [16.0, 16.0, 16.0]
}