Product Description: 1. A single load bearing weight of 100g, a single resonance elimination ratio: 170Khz vibration absorption 90%, 120Khz absorption 82%, 85Khz absorption 60%; 2. Two load-bearing weights of 150g, two resonance elimination ratios: 170khz vibration absorption 88%, 120Khz absorption 88%, 85Khz absorption 78%; The reference of the mounting hole is the diameter of 9mm round hole suspension ball, the thickest part is straight through 17mm For more details, please contact with Ms.Kathy Zhao Eamil: chinarubber@aliyun.com