The Northern Lights Adjustable Calf Stretch Slant Board helps increase your flexibility, improves posture and helps stretch important muscles as they become tense. The heavy duty steel frame is finished with a grey powder coat and is ready to use out of the box. The unit has 6 adjustment levels ranging from flat to a 45 degree angle. Calf stretch boards have a multitude of benefits, such as aiding in the recovery of Achilles tendon injuries, shin splints, calf strains and other lower leg injuries. They also increase calf strength, improve balance and flexibility. Using the stretch board can also help with everyday activities, such as standing, walking, and running.