Bowjax Magnum Vibration Dampener #1026B Fits bows with 7/8″ or larger limb gap. The Magnum Monsterjax represents the next level of innovation for limb dampeners. Reduces Noise and extends the life of your bow limbs. They have thick rubber pads that go inbetween the limbs for maximum vibration control. No bow press needed simply install with provided screws.