Hey there! Dealing with medical samples can be messy, but these Vakly specimen cups make it so much easier. These 4oz containers are perfect for collecting urine, stool, or semen samples without any leaks or spills. The screw-on lids create a super tight seal that keeps everything contained during transport - no more worrying about accidents in your bag! The medical-grade polypropylene plastic is durable and dependable, while the graduated markings (4oz and 120ml) make measuring your output simple. Though they're non-sterile, they work great for all kinds of testing - think drug screens, STD checks, pregnancy tests, or checking for diabetes and other health issues. Whether you're collecting at home for your doctor or using them in a clinic setting, these cups handle both liquids and solids securely. The translucent design lets you see what's inside without opening, and the wide mouth makes sample collection straightforward. They're budget-friendly enough to keep on hand for whenever you need them, and disposable so cleanup is a breeze. Much better than trying to repurpose old containers that might leak or break! For reliable sample collection that gives you peace of mind, these Vakly cups have got you covered from home to the lab.