Art Isolation Hangers are use neoprene elements and springs to avoid metal to metal contact. This separation is designed to isolate noise, reduce resonant vibration and lower structure-borne noise. The primarily use of Isolation Ceiling Hangers to isolate ceiling grid systems and pipe and duct work. All hangers are designed to allow as much as 30 angular rod misalignments. All springs are designed to provide additional travel to solid of 50% of rated load. The Isolation Spring and Isolation Combination Hangers can be used for hanging objects such as speakers, small machinery, metal enclosures and more.