The Dacron Connectors from COLMIC are special connectors with a stiff, braided and coated tie line that keeps your main line away from your rod tip. This prevents the line from twisting around your rod and reduces the risk of losing the fish. The teardrop-shaped soft rubber bead functions as a stopper that prevents water from entering the rod tip. These Dacron Connectors are available in different sizes: DACR02 Red: 4x6mm, DACR03 Light Blue: 5x7mm, DACR04 Blue: 6x8mm, DACR05 Black: 7x9mm, DACR06 Purple: 10x9mm.