The FAN Pads (Formalin Absorbing Neutralizing Pads)are an excellent product for cleaning up spills, grossing on and using as a shelf liner where formalin specimens are stored or transported. The Small FAN Pad is ideal for grossing medium size tissues (e.g. gall bladders and appendix). It absorbs up to 200ml of 10% Formalin. Working Surface: 6" x 14".