• The original Penn State University shaker box 
• Great help for define the right animal nutrition
• Test with immediate results

To use the Separator, simply stack the four plastic separator boxoes on top of each other. Next, place about 8 cups of forage in the top box. Shake the separator five times and then rotate the unit a quarter turn. Shake and rotate a total of eight times, then weight the material remaining on every sieve. Percentage of different particle lenghts can be added as needed to meet dietary requirements. Box has 3 sieves, 19mm, 8mm, 4mm and a solid bottom. Comes with instructions.