Stoney Knoll sifting screens are built to the exacting standards required for field work in archaeology, paleontology, forensic science and law enforcement. They have been tested through years of service to provide optimal performance under the toughest conditions. Each sifting screen is hand-built in our family owned, coastal Maine, shop. The screens are comprised of select, clear, New England white pine. The screens are durable, though surprisingly light and easy to carry. Standard screen sizes ensure expedient delivery. Custom orders are also welcome. Stoney Knoll also offers a full range of archaeological supplies.