Size :500x500x15mm Load Capacity (Kg.):05 to 10 Natural Frequency (Hz):30-50 Thickness (mm):15 Coeff. of Friction:0.7 Shore A Hardness:90-92 Working Temp Range °C:-20 to +70 Weight ( Kg.):6.35 Material: Nitrile Rubber, Cork, Synthetic Fibre and Other High Gread Compounds. Colour:Green, Grey, Black https://www.vibrationmountsindia.com/insulation-plates/