Smart Dog Leads are one of those “Why hasn't anyone thought of that before” designs. A quality lead for everyday use, with the added advantage of being length adjustable and enabling you to securely tether your dog to a tree or pole without unclipping the lead from your dog, or tying knots in it.
The rated strength is related to the breaking strain of the Plastic Buckle in the handle when used for tethering. In normal walking the lead is substantially stronger, but the rated strength is due to the plastic buckle being the least strong component. The Smart lead is rated for Tethering dogs up to 26 kg. The Lead is significantly stronger when the buckle is not in use.