List of Criteria

State-of-the-art crown bracing must meet the following requirements:

	Freedom from injuries
	Flexible adaptability to individual safety requirements
	Softly attenuating limitation of natural crown movements
	Low-load swinging range for low perceptibility by the tree in gentle breeze
	Support of compensation growth at weak points
	Automatic growing with the tree
	Easy inspection
	Long life and reasonable prices
	Recyclable
	Easy handling