WHOLESALE 3pc PIPE BRUSH CLEANING KIT Great for cleaning any type of tube & other cavitities by hand. Inlcudes: 1pc 5/8" diameter brush, 1pc 3/8" diameter brush, 1pc 1/2" width brush. ⚠ WARNING: This product can expose you to LEAD, DEHP, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.