Built-in copper pipe elbow rubber strip. Good resilience and not easy to deform (placed inside a copper tube). Simple operation and easier pipe bending. Model:205 Applicable pipe material: copper pipe Applicable to: Red 1/4Inch: 3.5mm in diameter, suitable for 1/4-inch copper tube or 6mm copper tube. Green 3/8Inch: 6mm in diameter, suitable for 3/8-inch copper tube or 10mm copper tube. Yellow 1/2Inch: 9mm in diameter, suitable for 1/2-inch copper tube or 13mm copper tube. Blue 5/8Inch: 12mm in diameter, suitable for 5/8-inch copper tube or 16mm copper tube. Color:As Shown Material:plastic Package Contents: 1 * 1 * green tape 1 * yellow tape 1 * blue tape Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.