Sandbag sinkers are a great combination for any bank drop line leader. Sandbag Sinkers and Coldwater Strong Bank Leader is a great combination to to land your next Chinook on the Columbia River. The sandbag sinker is made with quality poly/cotton fabric with reinforced stitching. Stainless Steel release pin set at 9-10 lbs. Sandbag sinkers can hold up to 10 lbs of sand Float installed in Sand Bag to float bag after the sand had emtyed.