I very recently purchased a pair of York Nordic Motivator walking poles for my wife who is recovering from multiple orthopedic replacement surgeries and a very extensive spinal fusion surgery. She had previously been using an adjustable cane, but that caused a leaning gait. Now with her York Nordic Motivator walking poles, her posture is very upright and her balance and gait are excellent. We are extremely pleased and found the York Nordic customer service to be excellent!