Silver aluminum double pulley stationary truck assembly model ST-2 for ground set flagpoles with a 2-3/8 inch top diameter. This cap style truck assembly has two pulleys and is designed to handle two halyards. It has a set screw to secure it to the flagpole and a 5/8"-11NC spindle thread to accept a top ornament with matching thread pattern. Maximum halyard diameter to use with this truck is 5/16". (Made in the U.S.A.)