You couldn't possibly justify not bringing the Wild Country Ropeman MK1F Ascender with you on big walls because this tiny device is super versatile in the vertical world. Use it as a prusik or pulley for hauling loads or self-rescue in emergency situations. It's simple to place 10-13mm ropes through thanks to the forged sideplates, easy to release thanks to the flat cam profile, and superlight thanks to the forged alloy construction.