With the Petzl Chicane auxiliary brake, you can now use your ZigZag with a single static rope. The Petzl Chicane Auxiliary braking device creates continuous additional friction on descents and is specifically designed to work with the ZigZag and ZigZag PLUS mechanical Prusiks - so it ensures smooth rope glide during ascents. While limb walking, the ergonomic handle maintains an excellent grip and the openable side plate means quick and easy installation.