if you use a climber, PLEASE tie the two together, use a five(or more) foot piece of rope, tie one to the top area where you sit and the other end to the back of the foot platform. would be easier if you did two pieces of rope one on each side, but use at least one. been using a climber for 15 years or so, and had my first bad experience with one. ended up sitting almost 20" in the air without a standing platform. dont know what happened or how. just know if i didnt rock climb once in a while, i would still be sitting in the tree.