Comfortable padded sides for contoured fit around your ankles; Sturdy hooks fit over bars and buckles close the pads. Improves posture by counteracting the downward pull of gravity. Easy to put on and off, attaches to almost any chin‑up bar. Hanging upside down has several benefits, such as stretching muscles, spreading compressed spinal discs apart, and relieving back pain. Hanging upside down with this pair of boots to help reduce back pain, muscle tightness, and spasms.