The X-TRA SEAL 3-7/8"x1/4" steel ball foot air chuck features a robust steel ball construction that ensures long-lasting performance and reliability. Its size offers compatibility with various air hoses and tools, providing versatility for different applications. The secure ball foot design effectively prevents air leaks, facilitating efficient tire inflation. This air chuck ensures a firm grip on valve stems. Precision-engineered, it delivers consistent airflow, contributing to improved tire maintenance.