1Made of high quality plastic material, solid, firm and durable to use. 2Setting knob with tension can adjust 3 kinds of strength, better help you tighten the slack fishing line and adapt to various actual combat situations. 3Special stainless steel counterweight block designed, it can slide on the cross beam and convenient for you to use. 4It has three locating holes to choose, which avoids the situation that the bracket itself will block the power outlet of the tensioner. 5The LED light and warning alarms flicker together for fish alerts.Features:1. Made of high quality plastic material, solid, firm and durable to use.2. Setting knob with tension can adjust 3 kinds of strength, better help you tighten the slack fishing line and adapt to various actual combat situations.3. Special stainless steel counterweight block designed, it can slide on the cross beam and convenient for you to use.4. It has three locating holes to choose, which avoids the situation that the bracket itself will block the power outlet of the tensioner.5. The LED light and warning alarms flicker together for fish alerts.Specification:Condition: 100% Material: PlasticLight Color: Red & Yellow & Blue & GreenSize: Approx. 33 * 21cm / 12.99 * 8.27in Weight: Approx. 881g / 31.1ozPackage list:1 * Swinger Box Set