These air curtains are constructed using designs

Constructed of ABS plastic

but it also performs like new for 3X longer

It is also equipped with an anti-tipping device to prevent it from falling

01-7B8C-46-G3R3-050-S Datasheet (PDF)

CRC Brakleen Brake Parts Cleaner Nonflammable Advanced Formula 19oz (05089) These air curtains are constructedCRC Brakleen Brake Parts Cleaner Nonflammable Advanced Formula 19oz (05089) CRC Brakleen Brake Parts Cleaner Nonflammable Advanced Formula 19oz (05089) is a premier solution for cleaning and degreasing all types of brake assemblies and parts. Its advanced, nonflammable formula makes it a safe and effective choice for removing oil, grease, brake fluids, and other contaminants from brake parts, ensuring optimal performance and longevity. The CRC