SPECIFICATION & CERTIFICATION: Package including: 1 pc 15 FT 3-in-1 air lines kit, 3 pcs 16" tender spring kits, 1 pair glad hands, 1 pair gladhand handles, 1 pc gladhand holder, 4 pcs gladhand seals, Teflon tape. Certification: [SAE J2394 - 4/12-2/10-1/8, -65/-85 for ABS Green Cable], [DOT SAE J1402A 3/8" ID Air Hose], [SAE J560 for Plug] BOTH ENDS SPRING JOINT: Both ends of air brake hoses and ABS cables are protected by stainless steel springs. The spring joint with good elasticity can protect the wires well, and have a cushioning role when installing and using a wire. Therefore, our semi truck trailer air hose line kits have reliable security and long service life ALUMINUM GLADHAND HANDLE: The CheeMuii air brake hoses are directly equipped with aluminum grips instead of rubber grips that are easily damaged and aged. We are committed to providing you with safer and more durable products AIR BRAKE LINES: The CheeMuii red and blue air lines' double-braided d