The NZ Arb BPG (Best Practice Guideline) states that the SWL (should be) 10% of the rope's average breaking strength, spliced strength or tensile strength unless otherwise stated by the manufacturer—this means you apply a safety factor of 10:1. Here's more reading if you want detailed information. One. Two.

PLEASE NOTE: Adequate training and judgment are needed to reduce the risks inherent in using this equipment. The purchaser's responsibility is to ensure they are competent in using this product. Treetools strongly advise that you do not use any height safety or arborist equipment without first undertaking appropriate training.

No responsibility will be accepted by Treetools for damage, injury or death resulting from incorrect assembly or modification. If in doubt, contact Treetools at richard@treetools.co.nz. Any person modifying this equipment assumes all risks and full responsibility for all damages or injury which may result from incorrect assembly or modification. This product must be modified by competent professionals only.