This high-quality metal spring is designed to fit perfectly with Kirby models 505, 516, 517, 518, 519, 560, 561, as well as the G3, G4, G5, G6, UG, and DE. It is compatible with the brand and type and is suitable for use with Kirby vacuum cleaners. The package includes one spring, and it is easy to install. The spring is durable and will ensure that your vacuum cleaner operates effectively and efficiently. It comes in black and is made in the United States. This vacuum cleaner part is an essential item for your household cleaning needs.