SAVE MONEY WITH SCITUS: Already 10x cheaper then LeadCheck, the swabs offer increidble value without COMPROMISING the chemistry. They offer an incredible value for under 20$. MADE IN THE USA: The tests are manufactured in the United States. Entrust your family's safety to an accountable, reliable company. The company excels in lead detection and have unrivaled customer service. TEST FOR LEAD NOT ZINC: Swabs that are ORANGE in the carton aren't made correctly, they WILL give you false positives on normal- non lead painted surfaces. Read the Reviews! ZINC DETECTION: If testing a metal surface, a positive reaction may indicate the presence of zinc. To rule out false positives, dip the swab tip in lemon juice for 10 minutes post-test. 30 HIGH-QUALITY LEAD CHECK SWABS: Each package includes 30 lead detection swabs. Affordable and high-performing, Scitus Labs offers the best value lead paint testing kit. These are designed for use on painted surfaces - not unpainted surfaces such as ceramics and enamels (pottery, china, stoneware, dishware, tiles, bath tubs, etc.). CERAMICS: While the testing swabs are not intended for use on ceramics, they will detect high levels of lead on the surface. However this does not guarantee the ceramics are lead free. Look up your dishes online even if they appear to be negative! Local Pickup option in Houston, even on weekends. Both nationwide and international shipping. International Buyers ? Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to buying.