The Petzl CHICANE auxiliary braking device allows ZIGZAG and ZIGZAG PLUS mechanical Prusiks to be used on single ropes. It provides continuous additional friction on descents. The excellent compatibility of the CHICANE and mechanical Prusik as an assembled unit ensures smooth rope glide through the brake during ascents. The ergonomic handle provides excellent grip and facilitates movement while limb walking. Thanks to the openable side plate, installation is quick and easy.