Exactly what I was looking for. I have inner ear problems, and frequent dizziness. That is why I invested in this clamp is perfect in length. I confirm 77 cm in all, what many nice people told me when I asked for the size; personally I measure 1.73 m and it's perfect. It is easy to handle, small magnet at the end, raises just little things and small hook. I recommend for bp back, ears, lazy ...