This Vibrant AN Thread O-Rings Box Set Consisting of AN -3 -4-5-6-8-10-12-16 is a comprehensive set of o-rings for a variety of applications. The set includes o-rings in sizes AN 3, 4, 5, 6, 8, 10, 12 and 16. The o-rings are made of high-quality rubber, providing superior sealing and vibration dampening, and are designed to resist temperatures up to 250°F. They are also resistant to most chemicals, making them suitable for a wide range of applications. The set comes in a convenient box for easy storage and organization.