Using this Piher E clamp is easy. For woodworking or welding, just place the clamp on the joint you want to hold. Adjust the jaws to fit the size of the object. Make sure the padded ends are in contact with the material to avoid scratching. When not in use, keep it in a dry place. Clean it regularly with a dry cloth to maintain its performance. If you notice any damage, stop using it immediately and consider getting a replacement.