General description The 419 Piece Rubber O-Ring Set includes a comprehensive assortment of 32 common sizes, featuring automotive O-rings in metric sizes ranging from 3 mm to 50 mm. This wide variety ensures that you have the right O-ring for your long-term needs. Technical specifications Material: High-quality nitrile rubber (NBR) Size range: 3 mm to 50 mm Temperature range: -30 °C to +120 °C Compatibility and accessories Suitable for hydraulic systems Compatible with machinery and engines Applicable in hydraulics, piping, and pneumatics Other information Convenient storage box included for easy transport and organization of O-ring sizes Excellent resistance to acids, gasoline, oil, UV rays, and heat