The Chum Tube by BoatTrix is made in the USA and fabricated of quality PVC materials. The hardware is 304SS and it is specifically designed to attract fish. Amazing way to attract sharks and other fish species. This 4 1/2" diameter chum tube has a removable lid that has flow holes. The tube is perforated with 3/8 inch diameter holes in the tube and in the bottom to aid in the distribution of chum. Just fill the chum tube with cut bait and replace the lid. Now attach a rope to the eyelet and suspend in the water. Watch the fish come.