The medium ATR Shoe is made of stainless steel. It is a cylinder with a 7 mm diameter that narrows on one end to a 3 mm diameter. This product fits ATR accessories that are compatible with the Spectrum Two spectrometer.
The ATR Shoe helps to dispurse the force applied by an ATR pressure arm evenly across a sample. This ensures that the section of the sample under the shoe is in uniform contact with the ATR crystal.