Need to analyze particle sizes for soil, sand, aggregates, or other materials? This mechanical sieve shaker kit is built for accurate, repeatable grain size analysis. It comes with 20 stainless steel screens, covering U.S. sieve sizes from #4 all the way down to #270. The shaker itself holds up to five clear acrylic cylinders (2-inch diameter) where you place your samples. As it shakes, the material separates through the screens, and you can read the volumetric percentages directly off the frame's scale (0-100% in 5% increments). It's a reliable, straightforward piece of equipment for labs, construction sites, geology studies, or quality control. Saves you a ton of time compared to hand-sieving and gives you consistent results.