The Mountain Series Stabilizer is designed as a hunters stabilizer. This series of stabilizers is an ultra-light, micro diameter stabilizer to reduce wind drift while maintaining stiffness. They have a revolutionary internal vibration dampening material to kill residual frequencies before it reaches the bow. There is a 3-oz weight that comes on it. Now available in 4 and 6 in addition to our existing four different lengths: 8, 10, 12, and 15. Additional Weights are sold separately.