Calocloth is a medium sized 48cm x 36cm professional quality microfiber lens cloths the knitted fabric is produced with a higher concentration of fibres than any other cloth it is then chemically treated to split the fibres making them finer the split fibres give even greater fibre concentration with air pockets to lift and hold dirt and grease away from any surface it is used by professional opticians and photographers to clean all types of lenses and instruments it enables grease dirt