Flagpole truck RTC-1-238 (Cap Style) for 2-3/8" top - Satin Finish Satin Brushed Aluminum Single Pulley Revolving Truck Assembly Model RTC-1-238 For Ground Set Flagpoles With a 2-3/8 Inch Top Diameter Included Three Stainless Steel Set Screws To Secure It To The Flagpole 1/2-13NC Spindle Thread To Accept a Top Ornament With Matching Thread Pattern Maximum Halyard Diameter To Use With This FlagpoleTruck Is 5/16- Made In USA