Tendo Last Rope is the perfect rope for hard use in your climbing gym. Therefore, unlike the mountain with a 0.4 inch (11 mm) diameter and a thick rope diameter, it has an exceptional strength of 0.4 inch (11 mm) as shown in 16 times of UIAA crash. It is not waterproof because it is primarily intended for indoor gyms. This is why we recommend it as a rope for training in the climbing gym. It is also abrasion resistant and does not fall down easily, so it can be used for a long time. UIAA 16 fall tests and is a very good rope for climbing rope. Focus on UIAA crash resistance! Climbing rope comes with various dators, so you may be unsure about how to choose from, but for hard use in a climbing gym, it is recommended that you choose a rope with the high number of falls. This rope has 16 crash resistance times and exceptional strength.