SAGUD Air brush hose is nylon braided outside and rubber inner with blue and black color, on both end is G/8 - G1/8 . The airbrush hose adapter is G1/8 cable male G1/4 female. This airbrush tube air hose has Standard 1/8" BSP male and 1/8" BSP female fitting. No more leak performance, 1/8" BSP for airbrush, 1/8" BSP for air compressor. The rubber nylon airbrush pipe is not affected by the season, It does not harden in winter or summer. The length of this airbrush air hose is 6 foot 1.8 m.