Review on 🐾 Mighty Paw Check Cord - Lightweight 30ft Dog Training Leash | Durable, Weather Resistant Climbers' Rope with Reflective Stitching | Ideal for Training, Swimming, Hunting, Camping | Orange by Andy Ucros

nylon rope and NOT a climbing rope! Please do not confuse usage as such and mfg should remove this statement. I have been a Rock Climbing & Ice Climbing Veteran for 25 years and your misleading description could result in serious injury/death! The International Union of Mountaineering Associations (UIAA) is the international mountaineering and climbing association that sets the safety standards that all climbing ropes must meet. The test is carried out by independent laboratories. All REI dynamic ropes are UIAA approved. Dynamic climbing rope packaging lists the results of UIAA safety tests, including fall rating, static elongation, dynamic elongation and impact force. By looking at these reviews and thinking about what type of rock climbing you are going to do, you can choose a rope. The UIAA fall rating tests ropes to see how many falls they can withstand before breaking. Laboratory falls generate much more force than most real rock climbing falls. So the fall rating is basically a comparative value. Single ropes are tested by dropping an 80 kg weight on one rope, half ropes by dropping a 55 kg weight on one strand and double ropes by dropping an 80 kg weight on two strands. strands. All single and half ropes must withstand at least 5 UIAA falls. Double ropes must survive at least 12 UIAA falls. All ropes that meet the UIAA fall rating standard are safe for climbing. A rope with a higher fall rating may mean that rope will last longer than a rope with a lower rating. However, always carefully inspect your rope after a hard fall and consider removing it if you find any damage. Static Strain Static strain, also known as working strain, is the amount by which a dynamic rope is stretched when an 80 kg weight is suspended from it. The elongation of single and double ropes must not exceed 10 percent of the total rope length, and 12 percent for half ropes. Static strain is an issue when top-roping, lifting gear, and climbing fixed ropes with ascenders. Higher static strain usually indicates lower efficiency, since energy is lost as the rope stretches. Dynamic Elongation Dynamic elongation is the distance the rope stretches during the first UIAA fall. A higher aspect ratio equates to a longer fall, so a lower number is generally better as less stretch can prevent a falling climber from hitting an edge or the ground. However, less dynamic stretch means more impact force on climbers, belayers and equipment. The UIAA allows ropes to stretch no more than 40 percent of the length of the entire rope. Impact Force Impact force is the force in kilonewtons exerted on a falling weight when the UIAA first falls. A lower number means less force on the falling climber, belayer and equipment. The higher the dynamic strain, the lower the impact force. The lower the impact force, the softer you will land on the rope when you fall, but this tends to result in more stretch, which can be less effective when using the top rope.