K3 Type: K3 Product Name : Windball Type K3 Physical Characteristics 8x6 表格 Type Demensions mm Weight(PP) (kg/m^3) Surface Area Surface Area (m^2/m^3) Weight g/PC VOID SPACE % (Pcs/m^3) Number 1.5" 40 77 210 4.5 86 19,200 2" 50 82 168 8.5 96 9,600 ※Under conditions of “Random dumping”. for Plastic material.