Cost Effective - At less than $1 per test we are one of the cheapest around. Reliable & Compliant - Our lead testing kit conforms to UN standards and are precision tested for accuracy. Non-Hazardous - After using the swab it can be simply thrown away in the trash no need to hazardous disposal. Our swabs are 100% non-toxic. Easy to Use - Using our test kit couldn't be easier - Simply dip a swab in vinegar and rub against the material you'd like to test. Moments later you'll have a result. Results in Seconds - Our lead detection swabs change colour within 20 seconds when rubbed against any material containing Lead - Giving you peace of mind almost instantly!.