Parts List: 10 x 12.7mm Inner Diameter Welding Elbows OR 10 x 19mm Inner Diameter Welding Elbows OR 5 x 28.6mm Inner Diameter Welding Elbows OR 3 x 38mm Inner Diameter Welding Elbows OR 3 x 42mm Inner Diameter Welding Elbows Specification Product name: 90 Degree Copper Elbow Material: Copper Inner diameter (optional): 12.7mm, 19mm, 28.6mm, 38mm, 42mm Quantity(optional): 10pcs, 5pcs, 3pcs Special features: good elasticity, high pressure resistance Product application: copper pipe connection Product features: fast heating Wide range of uses: used for air conditioning refrigeration, plumbing hardware, water heaters, etc. Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement.