???? ULTRA-SENSITIVE LEAD TEST: Detect lead on a wide variety of surfaces down to the ultra-low level of 2 mg/cm2. This is the most consistently sensitive lead swab on the market. ✅ EASY-TO-USE: These swabs are simple to use – just wet the swab, swab the surface for 30 seconds, and then compare the swab color to the results chart on the bottle. No complicated testing or labs needed - do it yourself in minutes. ????‍⚕️ TEST A WIDE RANGE OF SURFACES: Test virtually any surface for the presence of lead –including paint, ceramics, flooring, roofing, walls – you name it. These swabs are very versatile for virtually any surface testing application. ???? VALUE FOR MONEY: Each bottle comes with 60 swabs, allowing you to confidently test in a consistent manner, without significant cost. ???? MANUFACTURED IN FDA-CERTIFIED LAB: Our laboratory and manufacturing facility have undergone rigorous quality checks and certifications. We guarantee the accuracy and quality of every test strip. ???? MADE IN THE USA: Leaping Lynx products are always made right here in the USA. We make quality home test kits.