CheckUp Kit4Cat is a revolutionary hydrophobic litter that keeps the cat's urine on top, making sample collection easy! The "litter" smells and feels like regular sand with a natural non-toxic repellent coating. It allows veterinarians, technicians, and cat parents to easily collect a urine sample without resorting to painful invasive procedures like Cystocentesis. The kit comes with everything you need to collect a urine sample: 3x hydrophobic litter, 3x sample collection vials, and 3x sample collection pipettes.