So, you want a line that sinks fast, eh? This line sinks like a rock and will get you deep, deep, deep. The Deep 7 is built on a thin, single-strand monofilament core and designed to be the fastest sinking line they could make while still keeping the line durable. The actual weight of the line would designate it as a 7-weight but it can be used on 5- to 8-weight rods. The total length of the line is 100 feet. The sink rate of the Deep 7 is an amazing 8 inches per second making this line ideal for the deepest lake fishing situations and for fishing chironomids with a vertical retrieve.