SIZES: 2AAA, 3AAA, 4AAA, 5AAA, 6AAA This new design is perfect for slow flowing rivers and still waters where sensitivity is required. The hollow insert allows light to shine through from any direction which enables it to be seen at distance, even when it is dotted down to a dimple. Most of the capacity should be used to lock the float onto the line with a No8 or No6 shot down the line for every 2ft of depth.