The Magnum Monster jax represents the next level of innovation for limb dampeners. Reduces noise and extends the life of your bow limbs. The Magnum Dampeners have thick rubber pads that go in between the limbs for maximum vibration control. No bow press needed, simply install with provided screws. No. 1026B fit all bows with a split limb gap of 7/8" (22mm) to 15/16" (23.5mm), fit most PSE, Mathews and Bear bows. Measure your limb gap 1st. 2 per pack.