Baitmasters Re-Usable Fish Chum Bag - 15"x18"x1/2" Large Hole Re-Usable fish chum bags are great for both fresh fish chum or frozen fish blocks. Use the Large Hole bag for thicker fish chum mixes. This large 15 x 18 x 1/2 inch bag can hold a lot of chum. The extra long draw string cord makes it convenient to attach to your boat, dock or other structure. This chum bag is compact and easy to store. Other uses: Shell collecting bag, beach gear bag, dive gear bag or use it for clam or scallop collecting.