Abstract: A movable anchoring safety device attached to a hunter or other person for use in ascending and descending a tree or vertically inclined circular structure member. The device consists of a multi layered strap with a substantial portion of the strap having an internally embedded biased spring material such as spring steel configured to have a circular inward bias. In use, this portion of the multilayered strap clings to the circumference of the circular member. The device is easily repositioned either upward or downward while climbing or descending. In fixed position, the strap cinches to the climbing surface and operates to anchor the climber in position and stop any fall or unwanted downward movement. The apparatus is particularly useful in enabling a hunter to safely climb a tree without interference from the device while using and positioning an elevated tree stand.