Dear sir,welcome to our company.Our company is specializing in all kinds of silica gel.If you choose us, we'll return you in best survice and good quality.Look forward to come out win-win with you.Our cataloge is as follows:Narrow pore sphercal silica gel,narrow pore lump silica gelType B spherical silica gel,Type B lump silica gelWide pore spherical silica gel,wide pore lump silica gelBig wide pore spherical silica gel,big wide pore lump silica gelBlue spherical silica gel,blue lump silica gelOrange silica gel(indicator)