This is any easy item to use that works. Depending on the depth I want to be at I clip the appropriate weight on the slit ring of the snap . I cast 50 feet of line out and then clip the snap with weight attached to the line. I then let out a set amount of line (counter reels work great -keep records as to what weight / line combination get you what depth) I can fish Lakers with 5 oz at 100 feet or other fish at 20 - 30 feet with 1 oz weights using these snap weights.