The document discusses Weiber's Soil Splitter, which is a tool used to obtain homogenous soil samples. It has grooves arranged in rows that allow soil poured into it to pass through a series of cross-slides fitted in opposite directions, resulting in more even samples. The soil splitter is available made from either stainless steel or iron, and comes in two models that vary in the number of grooves and dimensions. Its purpose is to provide precise, error-free analysis by ensuring uniform distribution of nutrients throughout soil samples.