The 1-1/2 in. x 8 in. tailpiece is a high-quality tailpiece with slip joint. They can be easily connected. The material is safe.Slip joint tailpiecePP materialWhiteSize: 1-1/2 in. x 8 in.CUPC approvalDirect connect. This product can expose you to chemicals including Di2-ethylhexylphthalate DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.