Size:120 x 98 x 12mm(LxWxH)/5 x 4 x 1/2inch;Granularity:120 Grits;Color:Blue; This sponge can be applied for dry or wet conditions,you can choose how to use it according to your needs,due to its nice water-holding function,it can reduce washing and improve work efficiency;,Because of its own water storage function,which can reduce the times of washing and improve your work efficiency,suitable for many different kinds of objects,providing more convenience in your daily life; The sanding sponges blocks can be applied for grinding any irregular surface,such as wood,paint,metal,plastic and so on,suitable to polish,grind,decontaminate,remove rust or paint(It works better with detergent);