Presto’s Crock Meter is used to determine the fastness of printed and dyed textiles to wet and dry rubbing. Complete with a pre-set rotary counter. Crockmeter is a unique test instrument to determine the colorfastness of textile materials against rubbing under either dry or wet condition. It checks the colorfastness to crocking when the test specimen is subjected to continuous rubbing by an abrading finger which rubs against it under specified load.