For beginning learners, we suggest you start practicing using the tool from some low places (e.g, below 1 meters), once you have mastered the way, it'd quite easy for your to conquer any trees. Guidance: Concentrate your force inward from the pair of "claws",your hands and bump always form a triangle, the clamping strength from the claws together with your climbing strength help you move upward, please note that hugging the tree and move upward is not correct way. Try to choose those trees with diameter of 10 inches to 20 inches to practice. Should you start learning on trees with very hard skins, it would be quite difficult to make it. Once you have mastered the way, you will climb any trees like a cat.