Grivel Thor Hammer (w/Single Spring Light+) climbing is a hammer with a comfortable ergonomic handle and spring lace. Thor is a very robust and versatile climbing hammer. It has an ergonomic handle for easy grip and use, and the sling is elastic for easy use without detaching it from the harness, and without losing it. Excellent hammer mass and convenient tip for extracting pitons. Grivel Thor Hammer (w/Single Spring Light+) climbing hammer