Yale's Ultrex winch line featuring the Chook is the leading solution for your chipper winch needs. Yale created this revoluitonary Chook to succeed the traditional steel hook that is generally used with chipper winch lines. Replacing steel users to easily choke off the load, either directly to the winch line, or preferably by use in conjunction with a sling. As with any chipper hook, proper and safe practices are required when the Chook is in use.