IO PREMIER 24-FOOT "DENSITY COMPENSATED" SINKING TIP Fly Lines with SLICKCAST and WELDED LOOPS INSTALLED. Floating running line and short, thick floating body section behind the 24-foot sinking tip. This taper design forces the heavy tip to turnover with less effort, making these lines among the easiest of their kind to cast. Colors vary by size. SIZES: 150-grain (sinks 4.7ips for 5/6wt rods), 200-gr (5.5ips for 6/7wt rods), 250-gr(6.4ips for 7/8), 300-gr(7.3ips for 8/9), 350-gr (8ips for 9/10wt rods), 400-gr (8.4ips for 10/11wt rods)