Discs of Silence 4 packBy admin / November 15, 2017 Discs of Silence 4 pack Discs of Silence 4/pack Max load-capacity approx. 45kg (99lbs) Optimum operating range, 20-45kg (44-99lbs) Additional spring set increase the maximum load-capacity to approx 90kg (198lbs) and then the optimum operating range is increased to 40-90kg (88-198lbs) Buy in Webshop