LASCO 02-2333 Brass Assorted Friction Rings 10-Pack. Includes (10) assorted brass friction rings. Intended for use with old style corrugated and smooth metal supply lines . Commonly used for connecting metal flex piping to faucets or toilets. Fits and accommodates various sizes depending on your project. Use with rubber cone washers for a complete installation for faucet supply tube hookup. Lead free kit.