Packing: 5pcs x male pipe bends (each size 1 piece, please refer to the picture) Material: Made of spring steel material, durability and flexible (5 sizes 1/4'', 5/16'', 3/8'', 1/2'' and 5/8'') Applications: Can be used to connect thin-walled copper, aluminum and stainless steel pipes in air conditioners or refrigerators Flexibility: Silver springs have excellent elasticity and flexibility to accommodate pipe bends of varying angles and radii Uniformity: Bending springs provide uniform support to ensure accurate and consistent pipe bends, Manufacturer: LAXALO