Hydrolastic is the award winning revolutionary concept in pole elastic. It offers a multi phase performance delivering a wide scale of ratings within one set up which is perfect for mixed fisheries and high catch rate venues. Hook a big fish and Hydrolastic will increase to a higher rating as it is loaded with more 'give' than standard heavy elastics. Unlike other types Hydrolastic has a hollow construction, which is filled with a secret high performance fluid and is a fully patented design. The elastic stretches first, then, when compressed, the internal walls close in and are held apart by the fluid.