Professional Asbestos Test Kit, Safe, Easy To Use, Laboratory Test Identifies Asbestos Fibers To As Little As 1% Content By Weight & Is More Sensitive Than EPA Guidelines, Utilizes Polarized Light Microscopy, Proficiency Results Within 2 Weeks, NVLAP & EPA Approved, $15 Lab Analysis Fee Required For Standard Lab Results, Contains 2 Sample Collection Bags, Gloves, Pre-Paid Postage Envelope, Information Form.