If you have kidney stones, you may be asked by your doctor to strain for stones so the sample can be sent off to the lab for analysis. The Calculi Strainer Kidney Stone Collector is made to assist you in this unfortunate but necessary process.Made using durable, solid plastic to provide long-term strength and use, the strainer is sturdier and much easier to use than paper cone strainers that fall apart and are hard to handle. This plastic material is also easy to clean, allowing one patient to reuse the strainer time after time. To prevent clogging, the strainer should be rinsed after each use.The midstream collector features a built-in tab for easier handling and sanitary conditions, along with a moisture-resistant plastisol liner that minimizes any chance of leakage. Meanwhile, a securely attached, fine mesh screen is ideal for filtering even the smallest stones while still allowing unobstructed flow.After using, you can easily spot any foreign material against the white background. Kidney stones range in size and can look like a grain of sand or a small piece of gravel. For added convenience, the collector fits into a 24-hour specimen collection container so you can return it to your doctor.Depending on your individual needs and preference, the Calculi Strainer is available in 1-, 3- and 5-count packages. You can purchase one and cart it around with you from place to place, or buy several so you can store them in various places at once. Sturdy and built to hold up through it all, this strainer will make this unpleasant experience that much easier.